Or at least the option of a quick save. I think Crysis is amazing, but really despised the gameplay change.

Crysis 2 didn't have that? That's like one of the most obvious things to have for PC games.

Some people view it as cheating, the checkpoints seem close enough and implementing a quick save system may cause some more bugs/glitches etc... or maybe they are including it.

How about unlocking Quick Save after your first playthrough?

Or having an "Enable QuickSave" option in the gameplay menu with a warning that nothing you do with that enabled will count towards any sort of "online profile stats" if there are any. If there aren't just put it in!!