
It isn't broken, it works as intended.
If you don't like it, you can always reposition your AT guns or not stack them. It uses a lot of ammo, just like the ZIS barrage, which is also a vet 0 ability.
113 kills on a AT tank, enough said. Zis barrage should ideally bet behind vet aswell but a squishy AT gun != a heavy TD.
You can indeed reposition your AT guns but there is a huge chance that the first shot will drop modesl and do HP damage, so you don't reposition them, you have to reinforce/heal/repair them which takes them out of the battle. There is no need for it to have this ability, and definatley not at vet 0.
If you have chosen to go a heavy TD to counter tanks, you shoud have to sacrifice that tanks ability to fight infantry, regardles of a small muni cost. If the FF tulip rockets killed infantry, im sure you would feel the same way, no?