Great game! Players should be able to specify their spoken language so an algorithm can group squad members by language.
Add a magazine release button to the relevant weapons (AR platforms).
Add a "crack" sound when bullets graze the player.
Add high-powered semi-automatic DMR rifles for those who like realistic gameplay, not just for scouting but also for assaults.
Sprinting should cut off when the player aims down sights, not when they start firing, and sprinting should resume once the aim is down sights.