This clan plays the game "Halo" only. If you don't own it, you can download the free trial version, which can be played online( contains the best multiplayer-map).

Download-LINK

Halo Trial is quite possibly the most sought-after action game of the moment. With Halo Trial, you can play in multiplayer or individual mode. With incredible graphics, humankind is on the brink of extermination by a powerful fellowship of alien races known as the Covenant. You and the other survivors must wage a guerilla-war against the Covenant to save the future of the human race. But, to save humanity, you must uncover the mysteries of Halo.

With amazing special effects, thrilling game play and a rich sci-fi epic adventure story, Halo Trial is a hit among gamers across the world. For the ultimate Halo challenge, join and battle online in an all new multiplayer experience. There you will find new maps, weapons and vehicles. In the Multiplayer environment, the game modes are dynamic and add depth to the Halo multiplayer experience. You can choose between four different modes: Slayer, Capture the Flag, Oddball and King of the Hill.
 

from freetrialdownloads.com