Heyyo,
Antrhax, lots of custom player models have messed up hitboxes sadly. Biggest example I think was that fusion pack 9 or 10. One CT model was invunerable insept shots in the foot and hands I think it was, the rest would just do ricochet shots... and actually the shield made that ct model take damage.
So you just had some bad player models is all anthrax, not all are bad. BUT, it was a known bug in PODbot that hitboxes for bots aren't correct for some reason. It was fixed sometime ago in PODbot mm, and I'm sure the fix was brought to E[POD]Bot as well.
