As the previous posts have said, it's a map from Halo: Combat Evolved with two bases, opposite eachother surrounded by a huge, rock wall. In the middle of the map is a large grassland plain and teleporters are symmetrically placed at one base, and the receiver takes the player to a vantage point near the enemy base. Banshees are located beneath the bases and in the middle of the map is a cave/tunnel and opposite the cave are a group of scattered, huge rocks. The colour setting is similar to Beaver Creek. EDIT: It was featured in the Machinima Series 'Red Vs Blue' [url=http://images.wikia.com/halo/images/a/a5/Blood_gulch.jpg]Click here for Screenshot[/url] [b]I apologize, I am thinking of Coagulation. Blood Gulch was the Halo 2 Remake.[/b] [Edited on 08.24.2009 5:25 AM PDT]