You are not logged in.
Try to avoid bumping stationary friendly AI. Strategic placement of ai teammates to cover sectors is becoming increasingly popular.
Bumped ai may be no longer facing direction from tangos may be coming from.
Try to avoid surprising anyone. Surprises lead to friendly fire.
Announce that you are in the same area if you think that another player might not expect that.
If point man infront of you crouches and starts reloading his weapon -- walk past him.
Congratulations! You are the new point man.
When walking down narrow corridor first op always walks crouched to allow others to shoot over him.
Also do not walk in the middle of corridor if possible.
DO NOT stand infront of door while opening it.
When throwing flashbang inside room occupied by tangos DO NOT try to throw it deep inside room because flashbang might be blocked by furniture.
One meter from doorway is plenty enough.
When being in kneeling position if you SUSPECT that there might be teammate behind you firing over your head -- DO NOT STAND UP unexpectidly.
First while being crouched look behind you to make sure that there are nobody there.
These will increase your chances of finishing map alive.