Helps you recognize and use anti-tank weapons like LAW rockets. A handy skill to have should you encounter something far tougher than your Ranger instructors ever told you about.
A very good skill to have, as rockets are extremely powerful weapons, particularly against robots.
Unlike other weapons, all weapons covered by this skill are one-shot and must be manually re-equipped to use again. Fire off one RPG-7, and you will not have your second RPG-7 equip itself.