"We were fortunate enough to get a Crysis 3 Multiplayer pre-alpha code and were able to download and play the game throughout the weekend. This is, of course, the pre-alpha version of the game. That's pretty early on in its development.
Check out the really cool montage we put together for you over the weekend.
You don't have the option to customize a class, but they do provide you with four pre-set classes to chose from. The Active Camouflage and Maximum Armor is available to all four classes, just like in the previous Crysis. We discuss many classes and more of our feel of the beta."