I'm awesome...No seriously I am.
ok i just want to say one thing right now before i get into this.if sombody already made a post about this, please dont go making fun of me for not finding it faster than that person.and also if you've found this before me to, dont be all"is it me or is it getting realy cOLD in here.
alright here it is. if you play the level the maw without skiping the cutsceen wait for the pillar of autumn to do a complete rotation, then when it stops rotating the pillar of autumn and the cheif show's up in the banshee. right before the cheif shows up in the banshee,look to the frontish right side of the autumn and you will see the marathon symbol on it.
i know this probably isn't much of a big easter egg but i just needed to get this out of my system,
anyways this is my first forum post so i hope i didn't completely waste your time.thanks for reading!!!