Well... here's what I realised.
Rushing is BAD in Domination.
Mw2 = YES YES, GOOD
Black Ops = Yeah it's ok, you'll probally die though
MW3= NO! CAMPITY CAMP CAMP!
So, why? Well I play Search and Destroy 90% of the time, and I rush. Alot. Why? It's probally the best thing to do in Search. If you rush you'll usually go excellent (6+ kills is good) I mean, like 10+ kills. However if you rush in Domination, they just spawn right where you just cleared and shoot you in the back, so... no rushing in Domination, I just realised this after getting P/O'd for the last time. I watched it in theatre and huh... I kill a few people, run past that area and wow, they spawn literally looking at my back. So... I have to play campy until they fix spawns.... YAY. -.-