Back to karkand - has tanks jets and choppers . building destruction is a little more than the other maps.
Close quarters - no vehicles very fast paced, close spawns, and has gun master game mode
Armored kill - large maps, all major vehicles, probably a little too large of maps for console player limit IMO, flag distance is long and boring if you dont have a vehicle. Tank superiority game mode.
Aftermath - Limited vehicles, more infantry focused, scavenger game mode.
End game is another map pack that is supposed to be released in march. Not many details yet other than capture the flag will be a game mode and dirt bikes are a new vehicle. So if you get premium it will be included otherwise it will be an extra thing to buy if you go individually.
If I were to make the decision again I'd buy premium, but bf3 is one of my favorite fps games
I'm mostly speaking from a conquest game mode perspective.Edited by hsv - 12/26/12 at 4:27pm