I feel like a major part of combat I'm missing is the option to use non-lethal means on a weapon attack that takes out the last health of an enemy. In 5e you can choose to knock out the enemy so you can question them. I am also missing enemies retreating to try to get the attention of other enemies or blow your cover.
It can just be a pain because it does 1-3 dmg so you have to start spamming a bit earlier so you dont accidentally do alot of dmg with your weapon hit and end up killing the enemy lol