the maps are:
- Subway
-a concept of offense vs. defense where the boomshot is the offense and the sniper is on higher ground and is defense. It is basically a subway near the mansion (level) and is an oval around the map.

- Bullet Marsh
-another version of gridlock but it adds the kryll and a marshland with 2 snipers at opposite sides of the top, a boomshot at the top of the bridge, and a torque bow under the bridge, but sometimes the lights go out where the torque bow is and the kryll come in 5 seconds after you enter it the light eventually returns right after the kryll down you when they bite you. this is a rectangle type map.

- Process
-a bigger version of raven down and in the locust base where the resonator was planted. Its setting is combination of raven down and fuel depot with a sniper, boomshot, and torque bow. Square map.

- Garden
-an interesting map that has a lot of hiding spots. There is a certain room where the sniper is located and there is gas there and your teammates are going to have to release it with 3 buttons in the middle of the map. This map's weapons consist of a boomshot, sniper, and hammer of dawn. This is a HUGE squared map so be observant.

it costs about 10$ (to buy microsoft points)
but my friend gave it to my uncle for free somehow...
the maps will be free in september 7, 2007.
In my opinion these maps are combinations of all the other maps in gears and they are doing a great job as they are updating their game with new game modes and etc.
If you buy them discuss