When you open yourself to danger and exchange violence with an enemy:
On a 10+, exchange Harm and choose 3
On a 7-9, exchange Harm and choose 1
Discharge your weapon with the discharge tag, and deal double its Harm.
Take evasive action and suffer -1 Harm. (may be taken more than once)
You hold a position or halt an advance.
You make an advance or force your enemy out of cover.
You impress, dismay, or frighten your enemy. If they are a PC, they also suffer 1 Stress.
You are able to disengage and take a moment to Recover.