A Knife, or known primarily as a Combat Knife or Fighting Knife is a cutting weapon designed for military use, specifically for close combat; however, since the end of trench warfare, most military knives have been primarily designed for utility/tool use (clearing foliage, chopping branches for cover, opening ammunition crates, etc.).
The Knife is an all-kit weapon featured in Battlefield 1942. The Allied and Axis knives have different models, but are identical in terms of function and stats.
The Knife is an all-kit weapon featured in Battlefield Vietnam. The Knife retains the same statistics as the Battlefield 1942 variant but features a drastically different design, being much larger, and held with the blade down and to the side, rather than upright. The Axis knife was also redesigned into the Machete.
World War II mod
The BF 1942 models of the knife appear in the Battlefield Vietnam WWII mod, with an Allied knife issued to the US Marines and an Axis knife issued to the Imperial Japanese Army. The Knife retains the same statistics however.
— In-game description
The Knife is an all-kit melee weapon featured in Battlefield 2. Unlike previous games, the Knife's model does not change between factions, and it can now kill in one hit. Offsetting its power is the fact that the player must be very close to the target for the attack to connect. As a result, the knife works best against unaware and stationary enemies, as mobile ones can be a challenge to deal with, especially if they have a ranged weapon drawn.
Battlefield 2: Modern Combat
The Combat Knife is a weapon featured in Battlefield 2: Modern Combat and is only issued to the Special Ops kit. There are three faction specific knives, but they all perform identically, being an instant kill up close. USMC and EU soldiers are issued the Randall Model 15 Knife, the Type 95 Bayonet is issued to the PLA, and the Kukri is issued to the MEC. The knives are high damage stealth weapons, capable of killing enemies in one hit. Like in Battlefield 2, the player must be very close to land the attack, so they still remains most effective against unaware stationary enemies.
The BJ-2 Combat Knife is an all-kit weapon featured in Battlefield 2142. It functions identically to the Knife in Battlefield 2, killing with a single hit with a very small range, but it now awards the player with the victim's dogtag upon a successful kill.
After fifty kills with the knife, the player earns the Dogtagger Dagger, a knife replacement with a set of dogtags attached to the hilt. The weapon is a cosmetic replacement, and functions identically to the BJ-2.
Battlefield: Bad Company
The Kniv-1 is an all-kit weapon featured in Battlefield: Bad Company. It can be utilized to destroy fences or wooden objects as well as to obtain an enemy's dog tag. The weapon kills in a single hit, but takes two strikes to kill a team mate.
The Knife is a weapon featured in Battlefield Heroes and is issued to the Commando class for both factions. Rather than bullet-like damage fixed on a crosshair, the knife inflicts splash-like damage, spread in an area in front of the wielder.
The Katana is a melee weapon featured in Battlefield Heroes.
Battlefield: Bad Company 2
— In-game description
The Combat Knife is a weapon featured in Battlefield: Bad Company 2.
The knife is the first usable weapon in the game, and can be equipped on three occasions. The first time is after the opening cutscene of Operation Aurora where the player loses their Thompson, the player pulls out the knife and kills a Japanese guard with it. Soon after, the player receives a Type 100 and the combat knife can no longer be equipped as a standalone.
The second time is at the beginning of the mission Upriver, when the player must use the combat knife to quietly take out a sentry at an outpost overlooking a Bolivian Militia base without raising the alarm. The third time it is used is in the beginning of Airborne, where the player is equipped with a combat knife again, this time in order to kill a Russian soldier.
The player immediately picks up the soldier's AKS-74U, however, and can no longer equip the knife as a standalone weapon. Throughout most of the campaign, the player can only use the knife in an attack sequence.
The Combat Knife is the standard melee weapon, usable by all kits. When using the knife on an enemy within its range, roughly five feet, it will cause the player to lunge forward against the enemy and perform a stabbing attack. An attack without an enemy target will instead cause the player to slash with the knife.
It will kill an enemy player in a single strike but the weapon can be heard when utilized as the player often yells and makes a distinct noise. Players can kill certain enemies in vehicles if they are in an exposed position.
The knife is also a useful tool for knocking away certain destructible barriers, such as windows, fences, barbed wire, wooden doors, wooden railings, and many other light physical barriers in the player's path.
When players knife an enemy player in the game, they receive that player's dogtag as an award. These appear as bronze, silver or golden dogtags, depending on the victim's rank, with their name written below them. There are also several awards related to knife kills which the player can acquire. The dogtags from all of a player's past victims can be viewed in the Main Menu, providing a running tally of how many individual dogtags players have acquired as well as player-specific ones.
Knives are all-kit weapons featured in Battlefield Play4Free. They cannot be equipped, similar to Battlefield: Bad Company 2, performing a slash animation when used. The knife always results in a one hit kill, providing the player with the "Close Quarters Kill" bonus for 20 points.
|Combat Knife||The Default Knife in Battlefield Play4Free||Default|
|Khukri Blade||Rank 30|
Knives are all-kit weapons featured in Battlefield 3, providing two ways to utilize them, the standard knife slash or the Knife Takedown method. The weapon can also be used in all three modes in the game (singleplayer, co-op, and multiplayer).
Knife attacks (whether quick or standard) can destroy chain link fences and window glass with a single blow, allowing passage through them (although there are some exceptions such as the Russian spawn building windows in Operation Metro).
When attacking with a knife, the player does not appear on the radar; however, knife sound effects may reveal their position.
|Knife||Standard issue combat knife based on the M9 Bayonet, the Knife is capable of quick, clean, silent kills when approaching a target from behind and claiming the victim's Dogtags in the process. Slash attacks from the front can be lethal with multiple attacks, however they will not result in Dogtag trophies.||Default|
|Machete||Utilized by Dimitri Mayakovsky.||Only available in Singleplayer|
|ACB-90||Advanced Combat Blade model 90 is a heavy duty combat blade with a razor sharp edge, partly serrated and complete with a gut hook at its tip. This premium piece of equipment allows for quick, clean, silent kills when approaching a target from behind and claiming the victim's Dogtags in the process. Slash attacks from the front can be lethal with multiple attacks, however they will not result in Dogtag trophies.||Permanently replaces the default knife||Exclusive to Premium|
A takedown is triggered by holding the button while behind or beside a standing or crouching enemy. A takedown can be initiated from all sides if the enemy is prone.
After initiating a takedown against a standing or crouching enemy, if the enemy turns to face the player at the last second, a unique frontal takedown animation will be shown.
|Standing||Front||The attacker grabs the target's weapon and stabs him in the chest. He steals his dogtags as he falls to the ground.|
|Left||The attacker shoves the target's weapon down and stabs him under the chin. He grabs the target's dogtags with the blade hilt as he drops him to the ground.|
|Right||The attacker grabs the target's shoulder and spins him around. He stabs the target in the chest, grabs his dogtags, and shoves him to the ground.|
|Back||The attacker pulls the target back by the shoulder, reaches over and stabs him in the chest. He grabs the target's dogtags with his index finger and pulls the knife out.|
|Crouching||Front||As the target turns to the attacker, the attacker pushes him back by the shoulder and stabs him in the chest. The attacker grabs the target's dogtags as he falls to the ground.|
|Left||The attacker shoves the target's weapon down and stabs him in the chest. He releases the weapon and grabs the target's dogtags before removing the knife.|
|Right||The attacker pushes the target onto the ground and stabs him in the chest. The attacker grabs the target's dogtags as he stands back up.|
|Back||The attacker pulls the target back by the shoulder and quickly stabs him in the chest. The target falls back in shock as the attacker pulls his dogtags off.|
|Prone||Front||The attacker lunges down, reaches over the target's weapon, and stabs him in the throat. The attacker nabs the target's dogtags with the knife blade and stands back up.|
|Left||The attacker reaches down from the left and stabs the target in the throat. The attacker nabs the target's dogtags with the knife blade and stands back up.|
|Right||The attacker kicks the target in the ribs and rolls him over. The attacker lunges down and stabs the target in the chest, grabs his dogtags with his index finger, twists the knife, and stands back up.|
|Back||The attacker grabs the target from behind and pulls him up slightly. He stabs the target in the chest and steals his dogtags with his free hand.|
Melee weapons are greatly expanded in variety in Battlefield 4, though they all function identically. Against infantry, knives now exclusively perform Knife Takedown attacks, with slashing attacks limited to destruction of enemy gadgets or obstacles. Takedowns can be performed at all angles including in water. Knife attacks from the front whilst standing can now be countered if the players hit the melee button within a period of time.
When using other weapons, usingwill have the player character quickly pulling out their knife and making a slash (or performing a takedown) before switching back their last weapon. Holding will make the knife the player's active weapon after the attack concludes, and will allow melee attacks by using the normal attack button.
Outside of offensive uses, knives also deal greatly increased knockback on beached watercrafts, allowing players to knock beached watercrafts back into the water with knife slashes.
Battlefield 4 features a total of twenty-one knives, all featuring the same statistics and function, and each with its own kill count.
|Bayonet||Standard issue USMC M9 bayonet for melee combat. Use it in melee combat to steal enemy dogtags.||Default|
|Shank||Improvised prison melee weapon to take down enemies in close quarters and steal their dogtags.||An improvised prison shank.||"Fang of the Underworld" assignment.|
|Machete||Dima's Spetsnaz Machete, take down an enemy with this melee weapon to steal their dog tags as a trophy.||A Russian Spetsnaz Machete, as used by Dima in Battlefield 3.||"A Trapped Wolf Will" assignment.|
|ACB-90||Battlefield Veteran knife with added gut-hook to take out an enemy in melee and steal their dog tags.||Veteran Battlepack|
|Bowie||A well-known fighting knife with a long blade sharpened on both sides near the tip. Use it to steal an opponent's dog tags, and clean the carcass afterwards.||Battlepack item|
|Carbon Fiber||Lightweight and quiet, use this sleek knife in melee combat to steal dog tags from your opponent.||Battlefield Premium member|
|Scout||Traditional Swedish Scout knife in laminated steel. Can be used in the field to steal an enemy's dogtags.||Battlepack item|
|Survival||Handy blade to have out in the battlefield. Use it in melee combat to steal the dogtags of your enemy.||Battlepack item|
|Trench||Modern Trench Knife equipped with a knuckle duster style hand guard for stealing enemy dogtags.||Premium Battlepack|
|Boot||A short dagger carried inside a boot or strapped to a leg. This backup blade comes in handy opening a stubborn ration pack or relieving an enemy of his dog tags.||Battlepack item (only with Second Assault)|
|SEAL||This knife has passed one of the most rigorous evaluation programs in the world. It can be relied upon to swiftly and cleanly steal enemy dog tags while retaining its razor sharp edge.||Premium Battlepack|
|Improvised||Sometimes you need to make your own blade for when things get down and dirty. Utilize this make-shift weapon in melee to steal your enemy's dogtags.||Battlepack item|
|Dive||Crafted to withstand the harshness of the deep sea. An indispensable tool in any diver's kit. Use it in melee combat to steal your enemy's dogtags.||Battlepack item (only with Naval Strike)|
|Tactical||The recurve design of this blade extends its cutting edge and adds extra bite when slicing through objects or stealing an enemy's dogtags.||Battlepack item (only with Naval Strike)|
|BJ-2||A knife designed for the battlefields of the future. That doesn't mean you have to wait to get your hands on it. Use it to steal your enemy's dogtags today!||The BJ-2 Combat Knife from Battlefield 2142.||Battlefield Premium member|
|Precision||Machined from a single piece of steel, this lightweight dagger is a solid choice for stealing your enemy's dogtags.||Battlefield Premium member|
|A small knife usually carried in a sheath worn around the neck on a breakaway chain. Readily available and easy to deploy, use it to steal your enemy's dogtags.||Battlepack item (only with Dragon's Teeth)|
|Tanto||A heavy tanto style blade. The angled grip excels at puncturing hard targets. Use it to steal dog tags from your enemy.||Battlepack item (only with Final Stand)|
|Weaver||Forged using experimental 3D weave technology. Use it to steal an opponent's dog tags.||Battlefield Premium Member|
|C100||Your very own bipod knife, no bucket required. Rumored to be the favorite weapon of the greatest soldier on the battlefield.||Reference to the knife of "The Colonel 100" from the Battlefield Friends Machinima series||Reach Rank 100|
|Icicle||Replaces the default knife and is held until death. Respawns after a certain amount of time and awards the Cold Blooded trophy/achievement upon obtaining a kill.||Battle Pickup, can be broken off of buildings on Final Stand maps.|
Takedowns are triggered whenever the player uses the melee attack while within melee range with an enemy. If a player is attacked by a melee takedown from the front while standing or crouching, completing a QTE will allow the player to counter knife the attacker.
|Standing||Front||The attacker attempts to stab the target in the chest, but the target grabs and holds back his arm. The attacker punches the target in the face with his left fist, dropping the target's guard. He stabs the target in the chest and steals his dogtags.|
|Front Counter||The attacker attempts to stab the target in the chest, but the target grabs and holds back his arm. The target grabs the attacker's elbow with his left hand and shoves the attacker's forearm down with his right, causing him to stab himself in the abdomen. He rips off the attacker's dogtags as he falls.|
|Left||The attacker shoves the knife edge into the target's jugular vein. The target grabs the attacker's chest in shock while the attacker rips off his dogtags. The target is shoved backwards and spun around as the attacker forcefully pulls the knife out.|
|Right||The attacker grabs the target's shoulder and punches his face with the butt of the knife. The attacker stabs the target's throat and pulls off his dogtags as he falls to the ground.|
|Back||The attacker grabs the target's left shoulder and kicks out his right leg. As he falls back, the attacker spins the defender around, stabs him in the chest, and steals his dogtags as he falls to the ground.|
|Crouching||Front||The attacker attempts to stab the target's throat but the target holds back his arm. The attacker rips off the target's dogtags and does a straight knee strike to his chin. The attacker pulls the target back by the collar as he recoils, stabs him in the right side of his neck, and throws him to the ground.|
|Front Counter||The attacker attempts to stab the target's throat but the target holds back his arm. The target uppercuts the attacker and pulls his dogtags off. The target grabs the attackers right wrist and forces the attacker to slit his own throat with the knife and shoves him to the ground.|
|Left||The attacker lunges down, grabs the target's right arm, and slices his jugular. The attacker grabs the target's dogtags and pushes him to the ground.|
|Right||The attacker reaches over the target's arm and rips off the target's dogtags. The target turns startled, and is stabbed in the chest and shoved to the ground.|
|Back||The attacker puts the target in a headlock, pulls him back, and stabs him in the chest. He pulls off his dogtags and drops him to the ground.|
|Prone||Front||The attacker lunges down to stab the target, while the target tries to raise his hand to hold him back. The attacker shoves the target's arm and twists it over his back, forcing him to roll over. The attacker leans down, stabs the target in the throat, and steals his dogtags.|
|Left||The attacker kicks the target's left elbow, making him drop his weapon. The attacker drops to his knees, rolls the target on his side, grabs his dogtags, and uses a two-handed upward slash to slice his throat.|
|Right||The attacker rolls the target over by kicking him in the ribs. He lunges downward, holds the target down, and stabs him once in the neck, and 2 times in the chest. The attacker pulls off his dogtags and stands back up.|
|Back||The attacker jumps on the target's back as he turns in surprise. The attacker pulls off the target's dogtags and stabs him in the throat.|
- Main article: Battlefield 4 Achievements and Trophies
|Image||Name||Criteria||Achievement Points||Trophy Type|
|Turn Around...||5 Knife Takedowns in Multiplayer||10G||Bronze|
|Cold Blooded||Get a Kill with an Icicle||20G||Bronze|
Aside from numerous blunt weapons in Battlefield Hardline, the game also features ten different knives. Unlike past installments, they are not the default melee weapon and must be unlocked via Battlepacks in order to use. Each knife is also counted as a separate weapon from one another. The weapons themselves functions similar to its Battlefield 3 counterpart, allowing players to perform slash attacks on enemies for 75% damage per hit, as well as Knife Takedowns.
Golden variants of blades are also available though the completion of Syndicate assignments. While functioning identical to their normal counterparts, golden blade kills are counted separately from their normal counterparts and do not require their ownership to obtain nor are they faction specific.
|Knife||A basic blade with a slicing edge and sharp point.||$5,000|
|Boot||A double-edged dagger that is small enough to carried inside of a boot or strapped to a leg. This backup blade can be drawn quickly in an emergency.||Battlepack|
|Bowie||A fixed-blade fighting knife popularized in the 19th century, the Bowie knife has a large blade, crossguard, and a clip point.||Battlepack|
|Carbon Fiber||Lightweight and very strong, this blade is the ideal tool when you need to cut and run.||Battlepack|
|Scout||A classic outdoor knife with a crossguard and a birchwood handle, with a stainless steel blade.||Battlepack|
|Seal||This knife has passed the requirements of one of the most specialized elite military groups in the world today. The fixed blade is 7" long and has a clip point.||Battlepack|
|Survival||A handy blade to have out in the streets. The serrated edge means it is quite capable of sawing through thick cables in a ropes in a hurry.||Battlepack|
|Trench||The modern trench knife is designed to kill or gravely incapacitate the enemy at close quarters. It has a knuckle-duster handguard to protect the user's hand.||Battlepack|
|ACB-90||This tactical tool knife smashes, bashes, hammers, and cuts. Its equally powerful at smashing glass or cutting cord.||Exclusive to Criminals||Battlepack|
|Shank||An improvised stabbing weapon, often found in prisons in the hands of convicts.||Exclusive to Criminals||Battlepack|
|Karambit||Added in the Battlefield Hardline: Betrayal expansion.||Battlepack|
|Cleaver||Added in the Battlefield Hardline: Betrayal expansion.|
Performs Non-Lethal Takedown animations, but still kills players during a Takedown
|Devil's Toothpick||Added in the Battlefield Hardline: Betrayal expansion.||Battlepack|
Similar to Battlefield 3, takedowns are only triggered when melee attacking an enemy while behind or beside the enemy.
|Standing||Left||The attacker grabs the target and stabs him twice in the side, dropping him to the ground afterward.|
|Right||The attacker spins his knife to hold it in a standard grip, and stabs the target through the throat.|
|Back||The attacker grabs the target by the shoulder, reaches over his chest, and stabs him in the throat. The attacker pulls out the knife with his left hand as the target falls.|
|Crouching||Left||The attacker reaches down, stabs the target in the chest, and spins them backwards onto the ground.|
|Right||The attacker forcefully stabs the target in the top of the head. He pulls the knife out and lets the target drop to the ground.|
|Back||The attacker pulls the target back and onto the ground. He leans down and uses both hands to stab the target in the chest before standing back up.|
|Prone||Left||The attacker grabs the target's right shoulder and pulls him onto his side. He reaches over and stabs the target in the throat.|
|Right||The attacker kicks the target to roll him on his back. The attacker tries to quickly stab the target but he brings his hands up and holds back the knife at the last moment. The two struggle momentarily before the attacker overpowers the target, forcing the knife into his left eye.|
|Back||The attack reaches down and turns the target onto his back. He stabs the target in the chest, then uses both hands to twist the knife before standing back up.|
Knives return in various forms as melee weapons in Battlefield 1. As with Battlefield Hardline, a selection of other melee weapons is also available, including hand tools, clubs, and the Cavalry Sword.
All knives share the same statistics, except the Sawtooth Knife which functions similar to heavy melee weapons. Knives have a damage output of 35 and a speed rating of 90. Knives also have the largest takedown range of all melee weapons.
|100px||Combat Knife||A no-frills double-edged combat knife, favoring a slim design over additional features.||
|Trench Knife||A simple stabbing weapon made for silent kills in close quarters. The guard often doubled as a knuckle-duster for increased combat options.||
|Compact Trench Knife||A simple stabbing weapon made for silent kills in close quarters. The guard often doubled as a knuckle-duster for increased combat options.||
|US Trench Knife||A simple stabbing weapon made for silent kills in close quarters. The guard often doubled as a knuckle-duster for increased combat options.||
|Bedouin Dagger||A sleek dagger of Oriental origin typically carried by Bedouins as both a traditional item of value and as a weapon.||
|Survival Knife||A combination of survival knife and emergency weapon often carried by pilots and other soldiers that could get stranded in hostile territory.||
|Jambiya Knife||Equal parts beautiful and deadly, the jambiya is a traditional curved dagger with Arabic origins that saw use in the Ottoman Empire.||
|Hellfighter Bolo Knife||Harlem Hellfighters member Private Henry Johnson is reported to have used his bolo knife to defeat a large number of German soldiers.||
|Trench Fleur||A more elaborate version of a nail knife with a belt loop that has been shaped like a snake head.||
|Nail Knife||A crude knife, created by bending and pointing salvaged steel.||
|100px||Cossack Dagger||Also known as a Khanjali, highly decorated double edged daggers are a traditional weapon of the Cossacks and other peoples of the Caucasus.||
|100px||Arditi Dagger||Forged from the bayonets of obsolete Vetterli rifles, these daggers were carried by the elite Italian Arditi. This one bears the initials of its owner.||
|Russian Award Knife||A knife of Russian origin. Normally used to defend against bear attacks. Also useful against enemy soldiers.||
|French Butcher Knife||A knife made for taking apart livestock. Equally effective at taking out enemies.||
Takedowns occur any time that a melee weapon would inflict lethal damage on an opponent, although rear and prone takedowns can be performed on enemies at any health. Melee weapons inflict less damage to enemies facing the player, but may still result in a takedown.
|Standing/Crouching||Front||The attacker stabs the target in the heart, grabs their shoulder with their left hand, and drives the knife deeper with a second thrust.|
|Left||The attacker stabs the target in the ribs and pulls out. As the target drops their weapon and reaches for the injury, the attacker punches them in the face.|
|Right||The attacker grabs the target's shoulder and stabs their heart. The attacker twists the knife, more so than for the front animation.|
|Back||The attacker grabs the target and drives the knife high into their chest.|
|Prone||Front||The attacker kicks the target in the face, then stabs them in the neck.|
|Left||The attacker thrusts into the target's side, turning them over slightly, and stabs a second time in the stomach.|
|Right||The attacker stabs the target in the chest and twists the knife.|
|Back||The attacker stabs the target in the side of the throat, turns them over, then stabs them again in the chest.|
- The files for the ARVN and US military knives are the same as those used by the allies' knife in Battlefield 1942, with a different model. The axis combat knife still exists in the game files, but goes unused, replaced by the NVA and Viet Cong melee weapons.
Battlefield 2/Battlefield 2142
- Bots will draw the Knife and attempt to stab the player if they get too close, and won't pull out another weapon until the player is dead or a significant distance away.
- Both the BJ-2 and Dogtagger Dagger are both made of titanium, according to the "TITANIUM BLADE" text on both knives.
- The blade of the BJ-2 reads "DOGTAG FETCHER 88", suggesting this may have been its original name.
- Likewise, the blade of the Dogtagger Dagger reads "DOGTAGGER DAGGER - M2000".
- Although not directly visible in the viewmodel, the Dogtag Dagger's textures show that the dog tags on the knife belong to Demize99, the username of DICE gameplay designer Alan Kurtz.
Battlefield: Bad Company
- It is possible to cut down small trees with the knife.
Battlefield: Bad Company 2
- This is the first Battlefield game where the player does not wield the knife as a weapon—it now functions more as a melee attack option. The player just uses the knife then puts it away instantly, returning to wielding the previously equipped item. The only exceptions of this are the beginnings of Operation Aurora and Airborne.
- A glitch can occur when the player is climbing a ladder. If the player starts climbing in mid-slash, they will equip the knife after reaching the top.
- An update reduced the lunge distance for the combat knife.
- Occasionally, after slashing with the knife, the player character may hold their knife for a few seconds the same way as in the mission Operation: Aurora, usually during a small lag spike.
- The takedown animations during alpha were considerably longer. DICE switched to shorter animations that incorporate the removal of the victim's dogtags, and keep the first-person view steadier so the player is more aware of their immediate surroundings.
- Mortar users are immune to takedown attacks—vehicle operators cannot be taken down, and the mortar is considered a vehicle for gameplay purposes. It is possible to provoke the user into exiting the mortar, although there is a slight risk of being struck by an outbound smoke mortar (the regular HEDP mortar round does not inflict damage until it falls).
- There is a glitch that occurs when performing a takedown on a victim looking downsight, where the victim's cutscene is shown in magnification equal to the optics on his gun.
- A complicated glitch allows players to teleport to an arbitrary point above certain maps after performing a takedown, with enough height to safely parachute down.
- The ACB-90 knife given to Battlefield Premium users is based on the United Cutlery M48 Kommando Survivor Knife.
- Battlelog tracks knife swings under "shots fired".
- It is possible to score a headshot with the quick knife attack, which can kill an enemy with full health.
- A glitch introduced after one of the 2012 patches limited the number of consecutive takedowns to one, causing players to not attack for up to five seconds. It has since been patched in the October 11th server update.
- If caught in a takedown from certain angles, it is possible to counter the attempt with a Quick Knife attack. Certain animations will place the attacker's body in the victim's crosshairs, allowing the victim's knife attack to kill the attacker if already weakened below 50 health. A few of these even hit the attacker's head, permitting a headshot (2× 50 damage). Takedowns from behind cannot be countered, nor can takedowns on crouching victims.
- It is possible to score a simultaneous double kill with the knife. This may either be a case of latency causing both enemies to be caught in a takedown, or the "shot" from the takedown on one enemy also striking the second enemy.
- Due to latency, it is possible to stab somebody and die during a specific frame, granting the person a suicide with the Knife.
- The Machete is featured on the cover art of Battlefield 3: Aftermath, however does not appear in the expansion pack.
- In the singleplayer, the Bayonet knife is standard throughout nearly all missions, only replaced once with a Shank given by Dima to Recker in Kunlun Mountains.
- The HUD animates the display of dog tags taken from enemies.
- Players cannot counter knife if they are prone when a front knife takedown is performed on them.
- Players who are operating equipment (Ex: mortar, SUAV, EOD bot) can not have knife takedowns preformed on them.
- Sometimes when a player attacks from the front with a knife, it will play a side knife animation. This can still counter this and it will result in the front counter animation.
- The description of every knife except the C100 references the ability to steal enemies' dogtags.
- The C100 knife is a reference to the "Colonel 100" in the popular machinma series Battlefield Friends. In the episode TUGS Life, the Colonel 100 unlocks a bipod for his default combat knife. "Shit bucket" is also a popular phrase of the series referencing Colonel 100's that have "no lives"
- The Icicle does not appear in Battlelog, even after the "Cold Blooded" achievement/trophy has been completed.
Battlefield 4: Countdown to War
- Kovic attempts to kill Tsu with a shank, but fails, with the result of the weapon falling off the mountain they're on.
- Irish gives Kovic a KA-BAR knife during the latter's extraction from the Zhi Yu tower.
- A real-life replica of the Jambiya knife featured in Battlefield 1 was made on an EA sponsored episode of Man At Arms: Reforged, a web series where blacksmiths create real-life versions of weapons from works of fiction like movies and video games.