Just had this happen to me and wanted to write it down somewhere.

So I was going through "Assassination Plan" and I got killed on pretty much the same frame as I crossed the end level trigger. This brought up the "load previous checkpoint" screen, so I did.

It then played the intro cutscene for the next level, then crashed the Xbox on the next loading screen,

It'll be pretty difficult to reproduce so I don't think it will ever be a problem really, but watch out for that I guess?

Yeah man the games pretty glitchy, worst one is the blurry screen u get on lvl 2