guitargod8759

Play the mission alone. When you have exited the third tower and killed all the Flood, there should be a group of Marines waiting in Warthogs and Tanks. The Arbiter should enter a Phantom and start to leave. Get in the Scorpion and destroy the Elite Phantom. The Arbiter will survive and fall on the slope below. Get in a Warthog and have the Arbiter jump in the back. Continue the level as usual. The Arbiter will accompany you even though he normally is not there. After destroying the two Scarabs, the same Phantom you destroyed earlier should spawn another Arbiter on the ledge where he normally calls for you. The original Arbiter should still be in your Warthog. Drive the Warthog on the side of the ledge until you reach where the new Arbiter is standing. The Monitor will activate a light bridge. Both Arbiters will now enter your Warthog. You can now drive both of them around. Note: After the intermission sequence with the Prophet and Johnson, only one Arbiter will be there.