Opogjijijp is a theorist on the Bungie.net forums. He is known for introducing many radical and previously unbelievable theories. Some of his threads include: "Sergeant Johnson- A Spartan 1?" (His most well known theory proves that Sergeant is a Spartan 1), "Johnson Harvest and the start of the Human-covenant war" (the exact purpose of this theory is supposed to show that the ONI is hiding something about the war on Harvest), "Spartan 3s more than meets the eye" (shows the possibility ONI visited and bred spartan 2 clones on the Halos) and "The objects in the trailer and Ghosts of Onyx" (this proposed that the "ark" in the Halo 3 announcement trailer was a similar object to the slipspace portal in Ghosts of Onyx)