Ok it's now 5am. I've been up playing the 'Operation Broken Mirror' pack. I gotta say they put alot of work into it. The Vaporfield Glacier Battlefield basically consists of two large research and military bases, with a ruined city in the middle of the map. There are elevated roads over the snow and ice, and various smaller 'Satellite Stations' scattered around.
One of the highlights of the new map is maybe not the most noticeable but there is a large trench which drops off straight down through the ice. When flying into it you are able to go right to the very bottom of it, and it proceeds in a complete circle, so you may continue to fly the full length of the trench.
The new Armored Personal Carrier is an excellent addition, but I did not enjoy it as much as the 'Omega Dawn' Dropship. Carrying up to 7 people. The APC Vehicle also charges to destroy enemies in your way, and can drop a shield onto the ground which creates a circular force field around where you are, to help protect you.
All in all a must for any Warhawk fan, or if your looking for something to get you back into the game for awhile, it's $10 well spent.