People like it because its pretty balanced out and requires team effort
You and you're team need to try to build yourself so you can tackle any attackers and hold them off while doing the objective.
When I played I saw none of this teamwork. You can use teamwork in any game, it doesn't mean people do.
I know I'm using Call Of Duty as my go-to generic shooter, but you could say the same about it and really any other game.
OP, instead of trying to get random people on a forum to do the work for you, I think it would look better if you did it yourself. You would get to be more picky. You don't need the channel art immediately, just wait until you feel like you want to do it and edit it yourself.