— In-game description
C4 has multiple uses, ranging from anti-infantry purposes to anti-vehicle purposes.
Anti-infantry wise, C4 makes a decent anti-infantry equipment. Usually C4 is a good way to surprise enemies or ambush infantry. Though it is limited to five packs making it very troublesome to get ammo unless a support is around.
Vehicle are a very potential target and can take very usually two to three with light vehicles being one. Though its very dangerous to go up to an enemy vehicle, so it should be done with caution and using surprise and rushing an enemy that does not notice the player. An other anti-vehicle option would be to mine an area of a road similar to AT mines, though the player should attempt to keep a good distance and maintain visibility on his/her trap.
A commonly frowned upon idea is to go into an enemy base and booby-trap vehicles and wait for enemy players to enter the vehicle and detonate the C4. Thus giving a player one-six kills at most.
C4 is also one of the three ways to destroy bridges and can slow down vehicles and making some players take a long way around.
Similarly, C4 is the only installations such as UAV Trailers, Artillery and Satellite Scan, taking two to three packs of C4 to destroy one of the installations and can give an advantage to the players team.