An Upgrade Path (short for Field Upgrade Path) is a series of four Specializations per path in Battlefield 4 that are progressively awarded to players as Field Upgrades. Specialization in each path are unlocked and stack through squad-based actions in a match  There are a total of eleven upgrade paths, with three paths available for all classes and two paths unique to each class.. There are currently eleven paths with three universal paths as well as each class featuring two paths exclusive to it.
Paths can be freely chosen anytime during matches with progress for each path saved whenever a new path is chosen, a kit has been changed, or a new squad has been joined. Some progress, however, is lost for the path currently in use whenever the player and their squad have been wiped. Progress does not carry over to consecutive matches.
Three specializations in each path are initially locked. As the squad completes objectives, the remaining specializations are unlocked. If everyone in the squad is eliminated simultaneously, however, then the squad loses one specialization each time that happens. This system replaces the collaborative system in Battlefield 3 and the potential waste if squadmates selected the same specialization.
|Anti-Tank||Based off the Anti-Tank Kit||108000|
|Spec Ops||Based on the Special Forces kit||42000|
|Sniper||Based on the Sniper Kit||78000|