The ammo box is a equipment option with the assault class. After deployed, anyone friend or foe can use it to gather ammunition. The amount of ammunition and the range of the box can be increased by training the tier 1 skill corresponding to it.
Tips and TricksEdit
If you update the Ammo Box to max and train to deploy 2 ammo boxes at the same time you can replenish spent AA missiles if there is another missile in the launch tube. This allows constant missile "spam" and will down ANY aircraft in seconds if you do not initiate the manual reload.
This tactic will replenish ammo for ANY weapon that has more than 1 shot per clip. (tank cannons and TOW missiles are the only weapon that currently only has 1 shot before reload)