Those useless AT guns...

[SuperIke]

Guys, I need some hints on how to use those damn useless AT guns.

I'm playing the Soviets in the K44 campaign (Volcano Man alternate campaign). All Soviet divisions have an AT battalion, made of 45mm guns. Well, aren't these guns totally useless or what ? I don't see how I can make good use of them. I thought at first they could be useful to disrupt German units in bunkers. Nope, most of the time firing on a bunker with 45mm results in a "No effect" fire result. I can imagine the shell just bouncing off the bunker. Having them firing on infantry isn't much better and firing on panzers is as useless as on bunkers.

So, my question is: what do you guys do with these units ?