I have this problem too often. Sometimes it states the 999 ping and other players tell me they see 32-40 when I complain... (Tears!!)
I notice that I am delayed respect to the other players. Is like if some players were getting the image 1 millisecond before. The delay differs from map to map. I'm not sure if i am constantly lagged or if I'm delayed with respect to some of them. (More Tears!!!)
The huge unplayable lags I get them consistently in maps such as Helmsdeep and BussinessHall. The game runs fluently while I'm not in combat, and when the confrontation begins, then I have to shoot where I think the opponent will go! that if I am not frozen yet... its frustrating... (Crying like a lady!)
My score reflects the times I am lagged, once I am in the upper positions in points in my team and suddenly I am the last in the next map.
I hope there is something to do. (PMS!)
(What a wuz I became

)
Hehehe
Greets...