The Warface beta is open to all Xbox Live users on Xbox 360, following a limited public beta that launched in February.
The open beta includes three versus modes from the limited beta, plus two co-op settings and new, daily missions. Warface is Crytek's free-to-play military shooter (with the occasional mech) built in the same engine as Crysis 3 andRyse: Son of Rome. Yes, it's free, but it requires an Xbox Live Gold account to play.