Americas Army 2.0 came out yesterday. But don‘t expect to download it till the weekend. Most of the sites will be very overloaded for awhile because this is such a big patch, in terms of size and impact for AAO players.
I don‘t want to say all the things the new patch allows players to do because I would take up so much time. But aafiles discusses all the new addons and maps(suppressors, scopes, laser pointers, bipods etc.)
http://www.aafiles.com/file.info?ID=20247
Its free to download, but you can pay $2 for a direct download on americas army offical website for a speedy download.
There are lots of other sites to download it for free, you just have to find them or go to the aao offical website forums. (down at the moment I believe)