Structure
PC mechs have 4 Structure (most NPCs 1). At 0 HP the mech loses 1 Structure, rolls 1d6 per Structure lost so far and uses the lowest: 5–6 Glancing Blow (Impaired) · 2–4 System Trauma (lose a weapon mount or a system) · 1 Direct Hit (stunned, or worse when low on structure) · two or more 1s Crushing Hit (destroyed). At 0 Structure the mech is destroyed.