So there are these mission playlists for The Master Chief Collection that are comprised of different campaign. One playlist has every mission in order from Halo CE to Halo 4. Completing this will get you a hard earned achievement. Now I had just beaten the last mission of Halo 2 when I turned off my Xbox to take a break.

When I come back, what do I discover? That the whole playlist had been reset, and I'll have to do it all over again. I love this game, but that just...does not make me happy. At all.

Welp, bout to try it again, I guess in one go this time.