I think it be cool if you direct control a unit such as a hero/leader of the faction you choice to play as. Also, if you give troops orders such as holdfire/return fire only/free fire, duck/prone/walk/run,patrol/stand groud/fall back/take cover, and be able to costomise menu for your troops with camo to hide better if u decide to ambush or hide from the enemy and to equipment for troops like smoke grenades, frag grenades, etc. Also to be able sperate soldiers from a group, to make a group with other soldiers,or just the soldier to Be a lone wolf and to be able to move troops in a transport vehicle like a Elephant/pelican/warthog infantry carry. Plus to be able set up defense to try hold down a checkpoint on the map (barbwire, sandbags,etc) and to build around different parts of the map an not just your base area, and gamemoods like only starting the game with a few troops an having to spend points u earn in watch to get reforcements ,etc.same type of things for the other factions to, and line of sight future in the game also,things like odst drops, smoke grenades,mines that hurt friendlys and enemy, etc.Its kinda a lot of things to ask for but that's some stuff I like to see in RTS games.
