One is an idea I got from the later metal gear solid games. The 'hold up', which would obviously only be possible if you managed to stealthily get close behind an enemy. This is just an idea and I don't know what would happen afterwards, whether the enemy would be unable to move without getting shot, or if he had to drop his weapon, turn around and face the enemy with his hands behind his head, and look for a chance to retaliate if the captor moves his gun away slightly or gets distracted. And maybe the captor would have a choice of commands to shout at the prisoner like 'hands behind your head!', or 'drop to your knees!' (which might not work as different armies have different languages). Or giving the captor a choice to tie the prisoners' hands. Maybe even have a system where the captor should tie the prisoner and escort him back to a base to earn more points than killing him. This is all just a thought I had just now and I understand it would be painstakingly difficult if not impossible to impliment.
ops: Another similar idea is what I though of when playing R6: raven shield a long time ago. Sometimes if you quickly come round from a close corner and point your weapon at the enemies' face they drop their weapon and surrender. Another long shot but might be worth thinking about. Then after this has happened, you could go to the status I mentioned earlier and tie up/kill/imprison/interrogate the captive enemy.
My last suggestion is to do with the rotation of turrets on tanks/apcs. If you want realism, maybe if a tank is right beside a wall and tries to rotate the turret into the wall you could block the cannon by making it hit the wall instead of letting it glitch through. You'll have to forgive me as I haven't tried and tested if this hasn't been done already. But I know in BF2 it hasnt been done.
I know these suggestions are very vague but thank you very much for reading and I hope my suggestions inspire you if nothing else.
