another submission this one i think is the best i have made so far
Bungie.net : Halo 3 File Details
this map was pushed to its limits to get it to work there is about the 5 items left in the cap and very little money
it can use the regular gametype at start host and guest go through teleporter on left which will disapear after 120 sec when box spawns on it in backstage viewer go through the teleporter on the right also the door from turret room to studio room will close after 180 secs
heres a screenshot
Bungie.net : Halo 3 File Details