the kill 2 in 1 shot with shotgun thing

[Chrome]

anyone have any tips on this or any idea to beat it
its the last i need until i get gold

[TeeJayPlays]

if you have friends to play with ask them to literally stick with you and lower peoples hp without killing them. and when you get it, you do it in return for them.

[Chrome]

do challenges work in custom servers
cause if they do couldnt i get friends to help me with it on the other team

[Get bursted kiddo]

Got it doing team sniper shottys