Halo 5 Matchmaking Games Crashing

Can someone please explain to me what exactly is going on? Yesterday for the majority of the day I could not get online to play any matchmaking games. Things like my req points would show zero and my req powerups would be unavailable. Now today out of the 6 games I played 4 of those games crashed mid game for seemingly no reason.

This is particularly frustrating when my team is winning by a large margin. It also really sucks given the fact I used some rare and ultra rare req boosts then the game crashes and I do not get the req packs back. I know this has nothing to do with my xbox or internet connection so can someone explain what is going on with the servers?

Xbox Live was down for the majority of the day yesterday which is why you were having issues. You can check the status of Xbox Live services here:

http://support.xbox.com/en-US/xbox-live-status

As for your issues today, have you tried quitting the build or doing a hard restart on your Xbox?