Final "Support Specialist" challenge is incompleteable

This challenge it’s not doable on regular servers. It will take forever. Did the 75 revives in a match on a normal server and 400 damage with the airburst launcher, but just got to the point where it was just ridiculous. So, for bugged challenges we just go to bot servers. I’m really not proud of this, but it’s the only sane way to do it for the moment. Didn’t do stupid kills, neither high scores. Just entered the server and did the challenge and literally stopped doing anything until the game was finished.