The M1128 Mobile Gun System (Called the "M1128" in-game) is a modified Stryker, which in turn is a modified MOWAG Piranha (Which is the basis for the USMC LAV-25) that is equipped with a M68 105 mm cannon, a M240C LMG and a commanders M2 Browning machine gun. It designed to provide direct fire-support to troops in low-level conflicts and light anti-armor support. It is also designed to be able to be air-mobile, so it can be part of a rapid reaction force.
M68A2 105 mm cannon
|Main weapon ammuntion per reload||
|Complete Tank Destroyer Guide - Battlefield 3(08:16)|
Classified as a tank destroyer it has the chassis and troop carrying capacity of an IFV with a cannon of the same level as a MBT. However, the M1128 must rely on speed and maneuverability when facing other armor. The speed of the M1128 allows for the use of hit and run tactics to be very effective, and so, the M1128 is able to manuever to the rear of heavier enemy armor, striking enemy flanks and quickly capturing points. Combined firepower with other M1128s can overwhelm enemy forces.
The M1128 MGS is initially equipped with the 105mm rifled cannon, while unlocks for the M1128 allow for enhanced survivability and armament. Killing power against tanks can be enhanced with the unlocking of Autoloader, ATGM and Guided Shells. Until the Coaxial LMG is unlocked, the main cannon and the four passangers can provide anti-infantry capability with the M240C. It is important to use teamwork with the passengers as the MGS doesn't have a gunner seat. Anti-infantry capabilities are enhanced with the unlock of canister shells and upon the completion of the "Explosive Threat" assignment, Cannon HE. Survivability for the M1128 can be further augmented with Slat Armor, IR Smoke, Thermal Camo, Maintenance and - upon completion of "Need Repair" assignment - the Extinguisher.
The differences between MBTs and tank destroyers, such as the M1128, is that it has a taller profile than the M1A2 Abrams and T-90. This means at range it is easier to hit but allows the M1128 the tactic of cover and observation over the crest of hills, obstacles and burms. The passenger capacity for the M1128 - which can be used for limited anti-infantry capability through the use of switching seats for a single occupant or having each seat manned - is much greater than a MBT. However, the MBT's secondary passenger allows for the use of a 360 degree CROWS Platform M2 Browning turret that enables enhanced, if not better, anti-infantry abilitity and situational awareness. The M1128 also lacks the 3rd passenger CITV option which can aid greatly in armor target acquisition and further enhance situational awareness. Another difference between tank destroyers and MBTs is when engaging medium to long range targets - though the M1128 has the same cannon capabilitiy as a MBT - the M1128 moves and shifts after expelling rounds and generally lacks stability unlike MBTs which are nearly grounded after each shot and allows for easier engagement and follow-up shots of targets at range. Also, one of the most prominent differences is the reduction of armor, but greater speed than the MBTs.
Its Russian counter-part is the Sprut-SD. The M1128 is wheeled for quicker movement and acceleration which means it can leap over obstacles while the Sprut-SD allows for a tighter turn radius due to treads. This means that the Sprut-SD can rotate in place and move whereas the M1128 has to make several turns and then move. However, this in turn makes the M1128 better suited for hit and run combat, due to its high speed and acceleration making it a hard target to acquire and so hit. However, the Sprut-SD's track design allows it to conquer un-even terrain more easily.