I have been having this issue for a couple days now.. Though for me when I am out solo with no other players around I have NO issue on Omega (Chaos) But as soon as there are more then 5 people around my received ping goes through the roof. We are talking jumping from around 50/100 to around 10/20K But as soon as I move away from the other players again my ping falls down right away again.. My FPS is rock solid at around 120FPS both with out players and with players.