Proximity Alert, Radar Jammer and Mobility enhance make up for the people who only use cloak.
Cloak means easy death, for the other person using it. I'm so fast I bum rush people and melee like theres no tomorrow and 8 times out of 10 I come out on top. It just takes a lot of patience and a lot of practice to get a full grasp of the MP. Having a headset helps things out a ton.
From a match making standpoint, this game sucks. ASS! I try and get a clan together and what happens? We all get split up, or some times I get stuck in the lobby while half of each team gets to join the map. You constantly have to back out and go back in because nothing ever loads properly.
Mind you my only experience is from the PS3 version, which still needs a lot of work. A LOT of work.
The MP is fun, if you just play by yourself and not try and get a squad together. If you lonewolf and work with randoms things arent so bad. But any attempt to try and get friends together is just too much of a headache.