Omegowned (random rock formations to which you must "use" to open, if found in a building created by the forerunners then have an indent. If in the open world have an explosion at the map boundry to which leads to a cave). Omegowned is going to be little secret areas that you get an achievement for if you find all of them
what it is is its a scatter of cover and some sort of red form with (2 plasma rifles? discussable)
has a jetpack and is trying to kill you if you kill him he respawns instantly but gives you some time to run to the other side of the cavern which there is some sort of teleporter (purple so people dont know what to do with it). If you go through the teleporter yo get teleported to some sort of room. Omega is the "red form" he is like an elite on legendary just a different look it will take 2 magazines of the MA5C or whatever gun is in halo 4 to kill him
Masterchief saw this group of rocks portruding through the wall that appeared to have letters
etched into them "Omegowned" hmmm i wonder what that means (small description of what it would kind of be like)
2nd point YOU NEEED TO PUT THE FORRERUNNERS IN have it so that ship thing is a forerunner ship
the ship thing in the halo 4 trailer if its already something else just make a ship thing be the forerunners and make the campaign
3rd 4 players without xboxlive and make the characters the chief arbiter forerunner and some random elite
i had this idea in a dream and i was like "Oh wow im gonna recommend this!" so here i am