I think there are some connection issues at the moment, and definitely some big lagging going on.
Thing is I can't complain T2D because my connection is really going well. It feels much less laggy than all the other games that I have trouble with, even though the kill cam shows ridiculous delays at times.
Conversely, my playing buddy has a reasonably stable connection and apart from the odd game has always faired reasonably well. Since playing Crysis 2 he is getting owned big time. Last night he appeared to be hosting and got destroyed 2 and 16. Everybody else in the game had 1 red bar or 2 yellow and he had full green. So the problems could be down to poor match making?
I don't know to be fair, but I'm enjoying it while it lasts. Which probably won't be that long!
Knowing how it works is completely different to understanding how it works.