Some of the more obvious things
I'd consider this just a sort of double-check to make sure you didn't miss anything too obvious to work on, here's what I found with a tiny bit of testing:
Basilisk:
When the Basilisk's model moves directly left or right, it is looking in the wrong direction (i.e. if it is moving left, it looks in the direction that you'd look in when moving right)
Goon:
When taunting, there is a slight pause before going back to standard model position (this could be caused by the taunt animation ending too soon)
Humans:
- The human model (in third person) doesn't match up with the first person model (i.e. the camoflage glove)
- When the new first person models are reloading (take pulse for example) the third person does not match up
- When in chainsuit, the first person (and third person) models for the new model weapons like pulse do not match up (lol dat chainsuit has some sexy arms for being in full metal armor)
I might add to this thread if anything else pops up when I go on