Ok here they are:
1. Extend the time it takes to rack up multikills (psycho at the games current state with the lag and stability issues is nearly impossible to get....sure its not easy to get but damn I've come so close so many times)
2. Support actions should be included in multikill progress (I've once got 3 orbital strike kills within seconds and 3 Jaw kills within seconds of me calling in the strike.....psycho would have been a shoe-in
3. Reward people who prefer accuracy over spray and prey.......(headshots in armor mode=shots to the body w/o armor mode on)
4. Have an option of removing/enabling grain (like mass effect 1 and 2 options of removing grain) Crysis2 is supposed to be the pinnacle of good graphics but the grain is holding IT BACK!
5. Double XP weekends.....this game is fun (at times it really is) and what better way to reward dedication than to have 1.5 or 2x xp on weekends so people can level up faster so they can access more game modes
6. weapon swiching option if you run out of primary ammo in a magazine while in a firefight. I've had problems with emptying a clip into a guy but instead of switching to my side arm it reloads my primary.....so many deaths have occured
7. And lastly, perhaps this can't be implemented but it would be nice......a progress bar on the HUD telling you how close you are to leveling up ala COD 4 and COD MW2........