theres this lvl crabby and me used to get freaked out by coz we kept on sneaking up and killing each other on (crabby, if you could please tell them its name) theres a floating platform in the middle and i put all the fusion coils avalible there and it blew up, sending the platform flying, it was cool because all except 2 of the fusion coils spawned at wherever the platform was so it would continuously blow up...
also on sandtrap, if you put a scorpion in the elephant on forge then pick it up again, you can flip the elephant over, it lets you flip it back, it has a funny easter egg if you read where it tells you how to flip it, i also put a bunch of teleporters on the same level, its funny because i put them on the towers a few feet away from each other and on the other side and one leads to some good weapons among a bunch of crates...
my random guess is its Isolation. >_>
do u have XBL? (Xbox Live)
i don't have xbox live, i hope i get it some time though, and i don't think its isolation, might be epitah, there are yellowy-creamy forcefields that you can't fire or drive through and when youre outside on the balcony thing, its a huge drop...
ya thats epitaph.