This map is a lot like Gaurdian from Halo 3 or Lockout/Blackout from H2/H3. There is basically two towers (big tower and small tower) branching off a middle area. There is also a series of ramps/walkways that connect the two towers on either side of the middle area. One side is known as Banshee (a banshee spawned there in H2) and the other is shotgun/sniper side, where a lot of the action happens. On that side of the map, both snipers can be found as well as a shotgun and the outlet for the teleporter at rocket spawn, which is located between banshee and small tower.
Blue team has a very good spawn on this map since they usually get control of rockets, shotgun, and a sniper off of the opening rush (blue team spawns between small tower and banshee, on the platform above rockets) while the other team only gets a sniper (red team spawns at big tower). The key to this map is just to control the towers. Controlling both towers while keeping the other team spawning around banshee or shotgun is a very easy win since your team has height advantage, cover, and better access to power weapons. While it may seem like a bad idea to have two people at each tower at first (since the two towers are so far apart), each tower has very good sightlines on the other one and so often what happens is enemies rushing small tower are killed by your teammates at big tower and vice versa.
Also, many people may not know that you can wait beside the teleporter at rocket spawn and be completely hidden from all angles (small tower, banshee, etc.) except directly in front of you. It's a great place to wait for the rockets to spawn (they spawn every three minutes and ten seconds) because if you get into trouble, you just walk through the teleporter, back up so that you are directly behind the outlet at shotgun, and pick up an easy back smack on anyone who chases you through the teleporter.
