Delts Halo - In Delta Halo you can go anywhere in the level if you try. First destroy the turret on the hill where the grunts come from on the right. then go up where to the turret was then go to the right mountian side. there will be a kinda grass ramp and then jump anf ump agian. From this point it doesn't look like you've done much, but now you can go anywhere on the map! - Regret - to get anywhere in Regret you have to go halfyway through the level. When you come to grass ramps going up a hill with buggers around it and elites up top. Kill all these Aliens then go to the hill on the left and jump up. A Pelican should come, when it lowers jump on it when it raise and moves jump to the left mountians and you can go anywhere! EVEN IN THE WATER.