Probably the BEST historical military shooter I have ever played, hands down. Runs great, looks great, FEELS great. Rising Storm and Red Orchestra 2 are both AMAZING, and you can get them both, cheap!

Still has a good player base, and graphics hold up decently enough, great to play with friends. In my opinion it is far better than the sequel, offering a fixed price and less grinding.

L4D2 is still one of the best co-op games on the market, offering hours of gameplay on its own, and even more when using the very easily understood workshop system. Workshop still gets new content.