After awhile, my P90 just ended up out-performing my assault rifles on every level except for range, which I now use my Pancor for. I find it supremely odd how not even my FN-FAL could take on higher leveled armored targets yet my P90 could. Even the AK-112 with AP ammo on burst mode couldn't punch through Enclave power armor (AP ammo, as I read afterwords, is pretty much useless).
Basically, my companions are making me feel like the odd one out in combat, as I do little damage at long range, cannot fight armored targets, and literally have to be close as hell to maximize my damage dealing with burst mode.
Anyone else think that besides the G11E, assault rifles are really useless in Fallout 2?