Since the last season I simply can’t play an hour without getting a “fatal error” message and a crash. It’s always when I’m in a scorpion playing BTB in Halo 3. It’s just so annoying and I don’t know what to do
If you’re experiencing crashing try reporting it to the support forum, but if you have skins toggled on for H3 try toggling them off, restart MCC (closing it then opening it again) then it should cut the crashes down a bit since scorpions are notoriously broken for H3 when the skins were added (crashing when entering one or direct hits not registering)
Also to add to what was mentioned above, you can try running a game files integrity check with steam if you have MCC on there. If any files are corrupt, they will be redownloaded and repaired.