a day/night cycle would be excellent but i dont think we will be seeing it in this game well at least not in the multiplayer.
i think they should really try 2 add rate of fire 2 the assualt rifles even if it was only single fire and full burst.
other things
headshots - its only 1 shot with the sniper but seems 2 take half a clip with an assualt rifle now i no its not cod4 but maybe if it only took about 3 - 4 bullets
shouting random things - why do i keep shouting enemy soldier x3 when i cant see any1 and when i get out of my helicopter 2 heal it says enemy chopper inbound. i think they should scrap the automatic spotting and make depad up enemy spotted.
squads scoreboard - at the end of a game i would like 2 see which squad did the best with their overall squad score etc.
auto injector - scrap this and replace with somthing else destorys the whole point of having a medic
joining friends - now its only the demo but in the full game if i join my friends i want 2 be put in their squad and their team. also sometime when im in a full squad and we join a game 1 of us gets put on the opposite team
black screen / freezing - come on

this is supposed 2 be next gen ill blame this n the demo tho at the mo
goldrush - when starting a new map will you get to play as an attacker then swap to defender

or will u only play as 1
map rotation - dont add a vote system its annoying when good maps get skipped
secondary in the tanks - why is it sometime when an enemy tank fires just over the top of your tank it kills the secondary evn tho its not even hit the tank
bipods - both support and sniper have them can we have the ability 2 use them on walls etc
rate of fire - DO IT