Actually, all bikinis and quietness aside, it would be awesome to have a buddy system like MGSV's Quiet, you know, one where you don't have to micromanage orders, where you can just set them up to do certain stuff or position themselves on the map. For those not played the game, Quiet is a Sniper buddy you can position to scout or take a sniping spot anywhere on the map - maps that are kilometers in size. By the time you arrive at your destination she'll have scouted the entire area, pinpointing the location of all enemies and any objectives.
With just a quick press of a button you can have her kill a target or cover you by opening fire on everyone in visual range. In addition, she'll actively cover your stealth approach if you play that sort of game, automatically shooting anyone that attacks you. Unlike in Bioware games where if a buddy goes down you can just get them up again, a buddy that takes too much damage in MGSV is withdrawn from the area of operations until you leave and re-visit the map.
In my opinion, this is a step above anything Bioware's implemented in their games yet and if we're going to have another squad-based game, such as Bioware's trademark, having a well developed but easy to use command system is a must.