Campaign playlists crashing game

So while I am glad that multiplayer is receiving bug fixes and updates, I am wondering when the campaign related bugs will be resolved.

My issue:

I had another problem playing today on legendary with my friend. We were playing through the Halo Legendary playlist from the start and lost our progress about 95% of the way through on Cairo Station. We got to the point where you ride the elevator down that the drones come up on. We got outside and killed the first wave of elites with the one on the turret. We went up the MAC gun/ lift and about 5-10 seconds after the the last two jetpack elites spawned I was forced out of the mission. After a few attempts of quitting the MCC and restarting my Xbox one, I was finally able to party up with my friend again. I hosted originally and so I hosted again. I went to the same playlist and selected “Resume”. It started the whole mission all over again.

So we basically lost all that time with nothing to show for it. When this happens mid-mission for us we usually end up going back in and either the mission is automatically completed or we are forced to restart it.

So, I’m NOT the only one with this problem. Did LASO on Halo 4, got to Infinity solo, and then it crashes, forces me to restart. Then, I get to the SAME point, and it crashes again, won’t open. Go to Halo: CE, played fine, RIGHT until today on LASO where it did the exact same thing, right near the end of the level. HYPER annoying, as I WANT to do it on LASO, but don’t wanna live with the constant fear of crashing.

Speaking of which, JUST happened again. Got to Forerunner. Even less than last time. Is there ANY way 343 can fix this, because I’m getting aggravated that all my effort’s being wasted, due to technical glitches that JUST started happening, alongside a few stupid decisions in limiting this LASO challenge to the playlist. Would be able to do this if it was in a normal campaign lobby.