I was in a pug elite run today shortly before the server went down. I can't remember exactly, but it was a mute pug with 3 tacs, 1 sci and a eng and we did quite well although failed the optional because everyone stopped attacking the last gate once the timer hit 40 seconds. Anyway, it would have been possible

The point is, when we faced Donatra everything seemed a bit crazy. I don't think we ever got her below 70% but she constantly pop the team with incredible critical one-hit kills, my respawn timer was as high as 70 seconds in the end.

Is there some random variable included which does make her incredible tough or something? I can't remember it was like this ever.