Jumping from the woodwork, ‘Halo Online’ is an interesting surprise. Unlike prior beta’s the closed beta of Halo Online will be available on PC only if you live in Russia.
According to Waypoint, Halo Online will be a ” a free multiplayer-only PC experience; powered by a highly modified version of the Halo 3 engine and optimized for smooth performance on lower-end PCs.”
While having no campaign, Halo Online is said to take place “on a secret UNSC space installation called Anvil, where Spartan-IV soldiers train together in war exercises to sharpen their battle skills and test experimental technology.”
As of now, there is no definitive launch date for the Russian only, closed beta.