Can't play online after downloading update

I downloaded the content update as soon as it launched and went in to Halo 5 immediately after it finished. However, the update seems to have borked my game, since I can’t access arena or warzone.
I’ve restarted the game several times, disconnected from and reconnected to my home network, hard reset my Xbox, and verified that it’s not my connection by playing a few matches of Black Ops 3. Now it’s saying “could not find a server that was suitable for all members of your fireteam” after I reset my router and cleared my alternate MAC address. I’m about to just delete Halo 5 and reinstall it if nothing works.
Does anyone have any suggestions?