OMG! GAMERS! We need a WA clan for this one!

[Skynet]

Just because it is a Steam Engine game does not mean all Steam Engine games should run on your computer.

An entire continent is essentially being loaded up at the exact same time, which will take a toll on your computer. I've been watching SideStrafe and Krapp (2 different users) playing this game.

That's the thing, it's not using any engine from Steam. Steam is merely the distribution platform. It's a game made by Bohemia Interactive studio using Real Virtuality http://en.wikipedia.org/wiki/Real_Vi...game_engine%29
What you're essentially doing is using Steam to launch the executable within the Arma2 game folder. It allows you to access the Steam overlay and community whilst in game. :P

[Bullethead]

Loved this haha, these games are great when you have people who get into it. I'll have to go rebuy L4D2