A bit more info on the future releases of the AA:

1. Here is a video demonstrating some footage from drivable strykers and javelins but also has US army officials explaining about the game. Here is the link

2. Another video 4.5 minutes long, with pure in game footage. Pretty impressive stuff, with the amount of detail. It is a slow download, hopefully more mirrors will come up. Here is the link

3. AA DEV team is recruiting for quite a few positions. Interesting info about the requirements especially that of an AI programer. Have a look here