SPNKR

Dave, apparently Bungie are re-releasing Marathon for Xbox 360:

http://projects.metafilter.com/1032/If-I-Had-a-Rocket-Launcher-Id-Make-Somebody-Pay

A quote from the QnA:

"Dual Shotguns, quite possibly the best weapon ever created."

...

Oh, and: http://www.gamevideos.com/video/id/13536

HELL YEAH