The night before last me and a friend were flying in the arena, taking out Symbol Towers, I eventually got Best Guy and thought "it's 1am, I'll just save here and go into SP challenge mode tomorrow". I backed up my save 5 times on my HDD and 5 times on my MU and went to bed.
The next day I loaded and it said I'd lost more glory points than I can possibly imagine. Now I can imagine a $hitload of glory points so it must have been a lot!! Every backup save did exactly the same and I felt totally screwed. I got back to best guy, then predator and then got PR6 all in two hours but it's the principle, how in this day and age can suck a monumental programming glitch sneak through??
Doesn't change the fact I love this game but it grates.
One other thing, I've heard loads of people complain about how hard the 305th Sqdn F-15 is in Big Boss mode, mine was easy (24secs), maybe the game was giving me a break!
The coolest place I've visited this year :o)