I just downloaded and played through the multiplayer test for Wolfenstein: Enemy Territory. Holy crap, it's amazing. The team-based gameplay is fun, there's a variety of objectives and classes, promotions and experience, and it's overall an incredible experience.
http://games.activision.com/games/wo...asp?section=et
The multiplayer test has 1 map, "Fuel Dump". The Axis has to defend their fuel depot from the allies, who must escort a tank across a river (but first the engineers have to be able to build a bridge across it) , through tunnels, and then to the depot. Along the way engineers can construct machine gun nests and command posts.
What's the best part about this, though? When W:ET is released, it will be a
FREE standalone game. You don't need to own any other games, you just have to download it to play it. Which is just amazing. So try the multiplayer test.