Halo 4 Cheats :
Easter Egg - Red vs Blue: Episode 1 Easter Egg
On Episode 1, Chapter 5 of Spartan Ops, go over to the lava pit over the edge of the platform where all of the enemies were. On one of the rocks, you should be able to see a little box with a halo marking. Shoot it, and you'll hear a sound from the Red vs Blue intro.
Continue to play through the level, and you'll eventually hear Caboose of the Blue team talking about having to replace the radio guy because he had to take a bathroom break. Enjoy!
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