More:Halo 2: Missions: Ascension

From GameWinners

Contents 1 Sniping location 2 Boost jumping to the top of the highest tower

Sniping location

There is a great sniper location in the Ascension multi-player level. Get the sniper rifle and an SMG or a rocket launcher and grab the Banshee. Fly to the space between the two slanted forklift-type things immediately above where you would start if you were player one. Land, and get out. The Banshee will probably fall. Run up the slanted area and you can see the entire field. Because you cannot die from high places, you can drop down for a reload then fly back up.

Use the Banshee and fly up to the two poles above Sniper's Roost. Make sure you have a sniper rifle.

Take the Banshee and park it on top of the tower with two beams coming out of its top. There should be a good location for your Banshee at the beginning of the two beams. On a team, have one person takes one and the other use the other beam. Remember to go to the end of them to get the best view. If you are alone, you have an advantage. If someone starts shooting at you, you can jump to the other side. You should be too far away for them to notice. If you fall off, take the rocket launcher or duel SMGs to protect yourself.
ctcriwt wlurair,

Boost jumping to the top of the highest tower

Walk over to the ramp up to the main tower. There should be a ramp down to the lower level. Turn towards the bottom ramp and make an immediate left. There should be a pillar that separates the bottom ramp from the top ramp. Make you crouch and walk into the corner of the pillar, and the wall that keeps you from falling off the level. Walk until the screen starts shaking. Then, stand up and make a U-turn around the rocks that were to your immediate left (if you were walking into the correct corner). Run all the way to the edge where there should be a rock to your left (again). When you look down, there should be a crack that divides the dirt from the ramp that goes to the main tower. Jump off and land directly in the center of that crack. If you jump in the wrong place you could cause yourself a death by falling through the floor and being killed by the guardians. This may require a few attempts.