What is meant by "at guns"?

Suggestions
21

Ok but it need more time than use a ptrs for do 40 kill

22

It’s grindy, but not THAT hard.

I’m more scared by the time it’ll take to get those 30 melee kills.

23

Im my experience use moscow soviet an rush with a knife

24

Last time I did this task from an event months ago, I used PTRS.

25

Pioneers AT build?

26

I actually did that in a single match using the german at rifle