I played the sector control map last night (hey, Conquest, right?). It makes COD maps look large. I'm sure it's even smaller than the first beta's Deathmatch map. The entire base with three flags would fit inside the first Rush base on the Port Valdez beta map, in BFBC2.
It's mostly about crack-monkey reflexes. You die far too quickly. At least, I died far too quickly. For some reason, my attempts to kill others seemed to take longer than their required effort to kill me. Maybe they had earned better or enhanced weapons. If you start taking hits, you don't even have time to turn 45 degrees and look towards the incoming fire, let alone get a shot off , before you are dead.
Hopefully other maps are larger. Not impressed, so far.