Go in to Town or Tranzit get a ray gun and Pack A Punch it, but don`t take it from to machine let the machine swallow it. Now go to Mob of The Dead and get a ray gun go to the wardens office an shoot the Dpt. Warden (hanging upside down of the side with the door) in the head once and the warden (hanging upright on the other side of the room) three times in the head, you`ll see a gold ray gun rise out of the desk that is on fire but you can`t take it yet. Now wait for Brutus AND KILL HIM ON YOUR OWN you can do this any time he spawns after shooting the wardens. from now on when you get a ray gun from the box it will be the Midas X2 Ray Gun which can be P-A-Punched to be the Midas Porter`s X4 Ray blaster or something like that.
This has to be done online public or online solo play
Note: THIS EASTER EGG WILL NOT WORK WITH THE RAY GUN MARK II THAT COMES WITH VENGANCE!!!