A Elevator. There is a regenerator in the weapon holder in the middle. throw it and fly B. Extermination Machine. One person goes in a teleporter (without sniper). Other person picks up the sniper and shoots the fusion coil thus blowing up the grav lift thus dropping the dumpster on the victim and it falls on him ( In case it doesn't splatter them, the fusion coils will blow up Custom power up. Auto-death machine. The custom pwr up holds back the dumpster. Once u grab it, The dumpster rockets out due to the grav lift. This will not kill,(unless a custom game type is made to make the custom automatically give 0 sheilds and other settings) Oversheild. door. Go to the back(single box open), pick up the grav lift and throw it near the corner closest to the dumpster. Here's the link http://www.bungie.net/Online/Halo3UserContentDetails.aspx?h3fileid=118258013