The commandos did not have their assault rifles, they had paintball rifles. In some of the videos, you can see the paintballs splatter. If the commando had rappelled down with assault rifles, the thugs could not have gotten within 100 ft of them. When they finally used deadly force to defend their comrades and themselves, they used sidearms.
UN: Gaza could be 'uninhabitable' by 2020 if trends continue (AP)