coke hold or bottle neck.
where they come from in the back is one yea. however
there is many weaknesses he has mostly from above or simply straight on. he did good and should get credit for that. while the other team failed to kill or notice he was doing so well.

simply have recon on throw a flash bang up in the air over there where he is at, it will flash him. the flash is not what you care about when you use recon it marks them on mini map radar with a advanced radar arrow. Your full team will be displayed this and should be easier to take him down. roll with a shield have your teammates roll with you once your teammates die and hes reloading you switch to your gun and kill the bitch. you could also go to there main flag take control of it spawn flip then they will take control of the one you just had giving them no way to trap you as they just where. there is a list of things you can do ,,, but we never tend to think that way while in war so shit happens.