I've been wondering this for a while now, and I can't find another thread that discusses this, but I care about it enough to ask since Jorge was my favorite Spartan on Noble Team. Technically, Jorge is MIA, since what happened to John-117 aka Master Chief is extremely similar, and since we were inside the ship that the chief was on we know he is MIA, so let's look at this. Master Chief was traveling in a UNSC ship through a slip-space portal created by the Ark portal on earth. It closed while the back half of the ship was still within the portal, causing the back half of the ship to travel to an unknown location through Slip-space. Jorge detonated a slip-space "bomb" on board a covenant ship to destroy it. In reality, this "bomb" was a slip-space drive that was not fastened to the ship properly, causing it to teleport a chunk of the ship to a random place in slip-space. So let's take a few things into account. Jorge had Covenant on the ship with him, but with the loss of power to that chunk of the ship, the ship would have depressurized, causing all but some suited up elites to die. John had a cryo tube to rest in, but if anything is to be taken from the Legendary ending, he didn't use it for very long before he had to wake up. Who's to say that Jorge didn't accidentally teleport somewhere that help was nearby, relatively speaking. Just my thoughts on this, if you have any information that discounts this, feel free to let me know.