So, a ship mysteriously drifts to a certain Forerunner Installation. If you followed along right, you can guess what game I am talking about.
But now, a different lost ship, drifts to a different Forerunner Installation…
So we have the Forward Unto Dawn, and Spirit of Fire, both “lost with all hands”, they did not/had damaged Slipspace Drives, and they both ended up at the doorstep of a Forerunner Installation. And Im pretty sure its not a coincidence…
But knowing this, Spirit of Fire also has nowhere to go (just like the dawn) and guess who saved the Dawn? Infinity, or at least briefly before it left Chief to die. But Del Rio is gone so were fine. Also, if this takes place after Halo: 5, then it also seems to be a safe spot from the guardians, at least as far as we know… and, Infinity certainly needs to find a safe place. If Cortana had trouble finding it in the first place, it may just be the the Ark could be the safest place in the galaxy, even with the Banished.
Theory: Spirit of Fire is running low on reinforcements, and certainly needs back up. Turns into a “Cavalry is here” kinda moment, and Infinity arrives and deploys Spartan Fireteams, plus if we had interaction from Halsey and Anders. Maybe Even blue and Red teams. I can dream right?
But turns out in the end the Banished have been building an army of Grunt Goblins, and then they jump up on the spirit of fire and start pounding the windows saying “MECH PUNCH!!!”