My main issue with the game, which I absolutely loathe, is fighters retiring in career mode. I haven't had too much time to play, but now I'm like 20+ fights into my career, and I'm fighting fucking made up guys.
It took awhile to get up there and fight ufc guys in the career mode, and now I only got to fight like 3 or 4 and they're all gone. Completely fuckin stupid. Like why the hell does anyone want to fight guys who aren't even in the ufc? Pisses me off soooo bad