Firstly, I'm extremely happy to see that the crouching works just fine! Sometimes she doesn't crouch when I tell her to, namely on slopes, but otherwise she's done unless I decide to buff her in some way.
Secondly, I found that I cannot play my own class anymore due to lag. INSmod literally caused my computer to use up the last of its processing power to run it, it gave me the low RAM message. When it's just me and one other person, it's at least playable and I can sort of move around. When it's me and 3 or more people, I can barely move at all.. Do you think there's anything you can about that? Maybe the option to take off those movable corpses, or to deactivate some more of the particles? I would really hate being unable to play INSmod until I get a new PC..
Thirdly, Vault Boy seems just right to me now! With a gauss rifle, he was about as effective as a heavy, maybe taking down two players in pitched combat before dying.