The aircraft carrier

You rip open the floor of the map room and find a guard in an armory, there are racks upon racks of guns, grenades, spare clips, knives and body armor pieces. The guard sees you and grabs a grenade from a rack, pulling the pin and chucking it up onto your robot, it wedges itself into a crack in your body armor, right on your left armpit. You quickly react, picking the grenade out and tossing it back in the hole you made, blowing everyone in it up.