My ideas which should help the game to be popular. Most of them wont be on the program right now, as long as you have a lot of work with developing other stuff, but they should be in game before the Alpha and Beta ends.
Light RPG system
Your soldier starts like an absolute Greenhorn. After some time in battles, on servers, he gains XP which makes him better in aiming, quicker in reloading, etc. It should help to specialize the clasess and make a lot of more fun to play the game. It has to be balanced so Veteran doesnt OP the newbies, but it should be a king of motivation while you play.
Jamming of weapon
When you are new, why not have the weapon be failured? It would belong on level of your soldier, how many times the weapon fails.
Map, Votekick, Mapchange, Mod change
More blood on battlefield
It is quiete vanila. Lets the legs and hands drop off the body when you are hit by canon, slashed by slave, etc?
Should be fun, having more ways of dying.
Marks in earth
LEts have the soldiers leave marks in the surround to make them trackable
When the barrack or whatever is hit by several canon shots, it should be destructed
At ease, Attention...etc, with diferent ways of standing and walking would be nice.
I would love to have groups with friends, see them on map and comunicate with them in Team / group chat. Should help to lead regiments, etc.
Its Battlefield, I wanna see corpses everywhere.
Its all I had in mind right now, but I think about update or a new reply in this topic in future. I hold all my fingers for u, it is great game.