Tripwire Interactive has announced that a free weekend will be available on Steam for their World War 2 realistic FPS Red Orchestra 2: Heroes of Stalingrad from today through to Monday 17th. The free weekend coincides with the release of the free Fall 2012 Content Pack that will include a new map and also changes to the Countdown mode.

Everyone will get to play Red Orchestra 2 multi-player completely free on Steam from today through Monday 17 December, to celebrate the release of the Fall 2012 Content Pack. Now you can try the game, plus all the content added in the Game of the Year and Fall 2012 Content Packs, which are completely free to everyone who owns the game. Not only is the game free this weekend, but if you decide to pick it up before Monday we're selling it at 75% off!

In case you've forgotten the Fall 2012 Content Pack is, of course, free to everyone who already owns the game and includes:

• Barashka, the new map, which is a re-imagining and re-working of an old favorite from the original Red Orchestra. This brings in combined arms combat, villages, bridges and a river crossing to fight for. The map features both Territory and Countdown game modes.
  
• Simplified and improved match flow and user interface for the Countdown game mode, which will make it much simpler to understand, making for much more instant and direct battles. Just to encourage everyone to try out the changes, we'll be issuing Double XP towards your Honor from today in Countdown mode!

You can find the game available over here on Steam, and you can also check out the trailer below which gives you an overview of the map Barashka.