The ammo box is a deployable item and contain 200 units of ammo. Once on the ground a soldier that is within 100 pixels from the ammo box will start to replenish their ammo. Different number of ammo units will be depleted depending on what the player is taking. Ammo boxes can not refill other items such as grenades and claymores - these require a supply drop. Note that pistol and 5.56 rounds only take one unit from the box, however, 7.62mm rounds take two units for each round replenished.