When you visit an ammo box it removes 1 (double drum mag (mg34). Instead of getting extra mags.
If you play allies antitank soldier and have expended all ammo, first thought would be to run to a ammo box, right?
When I got to ammo dump, the ammo refresh sound chimed, tried to reload but no avail - still no ammo? WTF? Ran around couple of times, when got far enough, returned and another time ammo refresh sound chimed - and this time got ammo! Repeated this at least four times, first visit to ammo dump gave sound but no ammo. 2nd visit after ~25 m dash in the general direction of away gave the ammo for real...
This happened in TE-Fallenfighters, haven't tested elsewhere. The closest ammo box to allies side is lower left corner of the map.
If you play allies antitank soldier and have expended all ammo, first thought would be to run to a ammo box, right?
It seems somewhat linked to the ammo boxes handing out satchels to the AT soldier. If you wander up to an ammo spot without satchels (they're an unlock for the AT class), it will give you the satchels... and seemingly no AT rifle ammo. But if you head to an ammo box right after spawning to get the satchels... and return later it can give out AT rifle ammo. That's how I recall it working anyway.
In soviet russia ammo box is resupplied by you?
I have seen ammo boxes refuse to give ammo but not take it, if this happens often I wonder if its effected by what unlocks you have or what weapons you try to resupply.
It seems to "attempt" to reset your ammunition. If you spawn with 7 mags, it will reset to 7 mags, even if you have more than that.
Ideally, it should only resupply ammunition that is below 100%.
Of course, the tricky part is getting it to resupply any of your ammunition at the moment. Oh well, at least grenades are being supplied correctly.