If I try to see base_anim_female.1st.nif in CS (Character->Female Base Animation (1st person)), so I get an error: AnimationDlgProc needs an lParam pointing to a LinkList of TES3AnimGroups
So I cant open this animation in CS. I think base_anim_female.1st.nif is bugged and needs fix and optimization. Maybe this somehow affects ingame?

Does anybody knows about this?

P.S. Also I found that centurions does not use some sounds.
centurion_sphere not uses sphrHIT1.wav and sphrHIT3.wav
centurion_spider not uses spiderHIT4.wav
centurion_steam not uses steamHIT1.wav and steamHIT1.wav. Also steamATTACK1 and steamATTACK2 not used, in CS there are sounds for hand to hand in centurion_steam animation instead steamATTACK1 and steamATTACK2.

So all centurions should be fixed.)