More character customization would be cool since the possibilities seem endless and it doesn't really spoil the story. What I really do want to see though is a more detailed look at each classes special abilities. If you look at the walkthrough in container city you can see the engineer has an ability to "upgrade
insert gamertag weapon. There was another ability I saw for a quick second, I think in part 2, that has different ability for another class. I'd also like to know how the leveling up system works. Whether it's Borderlands style which actually "levels you up" and unlock points for a skill tree. Or if it's like MW2 where XP really just gives you means to unlock attachments and abilities.