If you're in need of something to game on Linux this weekend, why not try out the open-world survival game DayZ. The game is also going through a player surge thanks to a new expansion release.
Yeah it is actually pretty amazing how good performance dayz gets on the deck, even on deathmatch servers with 25+ players in a small area it runs great.
The gunplay is superb especially with some of the more common weapon mods.
Not sure why arma 3 runs so much worse in comparison, the difference is massive.