ArmA 3 has hit alpha phase and is actually available to purchase via Steam right now for $32.99. By doing so you get early access to the game, can contribute feedback to its development, and will get full access to the full release once it's ready. If you aren't familiar with the series, ArmA is all about real tactical combat in a sandbox type environment. We've already seen the potential of the series, with ArmA 2 allowing 100 player co-op missions. 

Bohemia Interactive have released a teaser trailer for Arma 3, their next iteration in their tactical warfare series for the PC. It sort of blurs the line between live action video and in game footage.  We're actually quite confused at what we're looking at, especially if you let the trailer run passed the closing logo.  

Boehmia Interactive have announced Arma 3, the sequel to Arma 2.  Shocking, I know.  The series is created by many of the original developers of the first Operation Flashpoint game and it retains a gritty and realistic look at war.  Along with this, the Arma games focus on realistic vehicles and weapons to try to emulate an authentic experience.