Go to that one city level place in multiplayer (i forget what its called) , it is not one of the ones downloade from xbox live. get in a banshee and fly over to the slanted building on the right side of the level. keep pushing against that without using the banshee boost and flip your wing over so that its on top of the building.push the banshee a little more and you will be on top of the building. this makes an excellant sniping spot.u can also run around up there for shits and giggles