... this is totally the best way to get Gai involved in things here hahaha. ANYWAY in canon Gai is... a terrorist leader, basically. He runs a resistance organization that fights against the GHQ and he does a lot of the mission-leading himself so this is pretty much the standard order of business for him.

He has absolutely no magical or supernatural abilities but he is a highly-skilled martial artist and experienced with various types of weaponry as well. ... he also has balls of steel so if there's crazy, reckless stuff that needs doing, he'll be all up for that.