In late January the development team of America's Army, the U.S. Army's free video game for the Mac OS X, Windows and Linux operating systems, arrived in Camp Guernsey for three days of hands-on training and demonstrations via the Green Up event. These people would ordinarily spend their days coding video games, planning the next release of the game, implementing bug fixes and planning future versions of the title or marketing. For a few days they've been given full access to some of the weapons, vehicles, physical training and technologies used in their game.