Tripwire Interactive today released its next update pack for Red Orchestra: Ostfront 41-45, the award-winning WWII online action game. The update includes a new map, a new vehicle and some major graphical enhancements to the game and is available to owners of the game for free through Steam. To give gamers a chance to try the updated version, Tripwire is offering a five-day freeplay period, August 29-September 3, as well as a 20% discount for new purchasers.

The new map - Krivoi Rog - gives players the largest tank slugfest to date, with 16 square kilometers of terrain, 3000 meter viewable range and up to 50 players. This map also features the new vehicle - the German Panzer IV G, providing the German players with some additional fire-power for the mid-war period.

In addition to the new map and vehicle, Tripwire has created an all-new adaptive bloom system for the game's graphics, making the bloom crystal-clear even at low resolutions. For further eye-candy, Anti-Aliasing and Anisotropic Filtering settings are now configurable in-game.

There are plenty more changes, updates and bug fixes in the update. Read the full changelog on the game page for details.

Tripwire also announces a six day freeplay period, this Wednesday through Monday. Anyone who does not have Red Orchestra can play the full game completely free for six full days. Simply download the game from Steam and start playing-the freeplay period starts at 1pm on Wednesday, August 29 and runs through 1 pm PST on Monday, September 3. Those who purchase Red Orchestra via Steam before September 5 will receive 20% off the regular price.