as far as I have been led to understand the Tomb Guards are unarmed save the bayonet. I had a drill sergeant who was an old Tomb Guard. He said they had standing orders to protect the tomb with the most reasonable force necessary required. What that means to me is they will beat your ass if you really screw up. Now there is a MP unit very very close by at all times some plainclothes ans some uniformed (all armed) ready to act with deadly force if necessary. That is what I know.