take the oracle map in co-operative play.
get to where the heretic leader is sealing himself in the door
and u have to cut the three cables.
do not get on the elevator. make player 1 and player 2 stand by the elevator. player 1 goes in the elevator and activates it.
player 2 waits a few secs(1-3)while player 1 goes upwards then
activates the elevator to make it go down. the loading zone will load player 2 close to player 1. since player 2 activated the swithc the elevator should go down. and voila. see for uself.
IT DID WORK.