Before patching, you can copy your entire Americas Army folder from:
"\Steam\steamapps\common\america's army 3" into a new location.
This will give you a copy of the old version, so if the servers are slow to update you'll be able to play on both versions. As soon as all the servers roll over to the new version you can delete this one.
It's a good idea to rename this copy once you've made it, eg this one would be "America's Army 3.0.3". Leave the steam folder named "America's Army" so you don't interfere with steam or future updates.
To run the game directly out of the folder navigate to:
\america's army 3\Binaries
and execute (or make a shortcut to): AA3Game.exe
Posted on Saturday, 4th July 2009