How about a feat for DnD 5e?
You know what around in in the battle field and where all the current threats are. Gain the following:
- Gain a +2 to Wisdom(perception) checks as well as to your Passive Perception.
- When you are engaged with an enemy and you move away without disengaging, you do not provoke an opportunity attack from a single engaged enemy. If multiple enemies are engaged with you, you choose which enemies will make their attacks, if able.