Prophets story .i.e. Campaign that plays thru the Crysis/warhead Arc and end at C2 beginings as Prophet
Power struggle or similar - domination with Vehicles - Conquest type
Day and night change back - Dynamic time
Dynamic weather
NO one hit KO if in ARMOUR even if its a headshot
STOMP for everyone at an upgrade perk for it
Options to turn FX on/off (yes consoles players need config options too)
Maps that arent campaign related like C1 - Be nice for C1 campaign related maps tho

Better Mic system Like KZ2 - hear squad all time / other people if very close
3rd Person MP assalt type mode with various tasks and an arcade style life/spawn system
Optional 3rd person on campaign