RECRUIT:

Resistance- 40 (welcome to Camp Sentry Gun)

Village- 39 (really hard to camp, but pretty easy to loop)

Interchange- 30 (NOT ENOUGH F***ING COVER!!!)
Underground- 35 (easy to camp, hard to loop)

REGULAR:

Dome- 33 (easy early on, gets really hard when support choppers come in)

Mission- 37 (camp by Weapon Armory early on, then just loop)

Seatown- 34 (this was on solo- it's really easy to lose enemies and Juggernaughts, and sentry guns on buildings are key here)

Carbon- 31 (the FUUUUUUUUUUUUUUUUUU map of T2)

HARDENED:

Bootleg- 27 (can still camp on co-op)

Hardhat- 25 (easy to loop, hard to camp)

Fallen- 28 (yet another map where you want sentrys on buildings)

Outpost- 19 (I've only played this once with a friend, and he rage quitted when he was downed by a burning car)

VETERAN:

Lockdown- 15 (man, things are REALLY heating up now)

Arkaden- 21 (lots of cover and some decent camping spots)

Downturn- 9 (hardest survival map in the game IMO)

Bakaara- 12 (gotta stay out of the open)

Conclusion: I like maps with a lot of cover, especially in the harder maps where choppers come in with enemy troops really early (the first Jugg hits Veteran WITH A ATTACK COPTER in round 5-6). Sentry guns in strategic spots are important in maps like Seatown or Resistance, but the best maps are the ones where I can get away from enemies really easily (especially as in the higher rounds or difficulties camping is NOT an option).

Seatown
Solo: 36   

Co op: 51

http://www.youtube.com/watch?v=VB_m3v0w0UUHey guys check out my first video and it show you l got 48 Stars in Spec Ops

I'm ranked within the top 1000 on several maps and on underground solo I made it to wave 45. At the time it ranked me as 13 but now I think I'm ranked 27.

davidacus 113(my other gamer tag)

fallen co-op 45 or 46 ranked 13th in the world and 45 on resistance co-op