Daybreak - small/medium size. Good for small CTF games and Snipers. When I was messing around in Forge I got a banshee spawn - I hope that's in very few gametypes.

Outcast - decent skybox, features a craft moving in and out such as the evac bird in Landfall. Reminds me of "warrens" from the SPOPS campaign. Medium size, lots of tunnels, little easy to get lost somtimes.

Perdition - probably best of the lot. I'd like to see multi-team CTF here (4x teams of 3). Love the enviroment, a very good sense of "something's about to go down". Would be an odd place to have a nuclear reactor, out in the relative open rather than buried underground (just saying) - http://i.imgur.com/vq94bf3.jpg would be good for close-and-medium quaters battle.

I've not played any Halo 4 for a couple of weeks (thank Tomb Raider and Bioshock Infinite for that). With the addition of Team Objective and these new maps I'll probably have a couple of games (need to get my SR43 up to SR50 at least)