Yeah I did, played one round, I think we finished it, not even sure because the interface isn't clearly laid out. Animations were jerky, robotic, HUD looked very amateur and unpolished. The only thing that felt ok was the shooting, kills were easy and AI wasn't overpowered, but didn't persuade me to try another round. It was a coop game.
Strange thing was that it streamed in from a browser and went full screen when it loaded, I'm not sure it saved anything to a hdd. It's the type of game I try when enough time has passed since my last format and I don't really care if it installs some crap bloatware and forces me to reinstall the OS. But ya know, I don't think it did, system still running fine. In Fact, Aliens CM screws up my pc worse than any beta has in recent memory.