Now to get a Bonus Cutscene, you have to know this, in the level Halo of Halo 3 which 
is the last level you are driving the Arbitor and yourself in a Warthog. You are about 
to jump of Halo and into a Ship, STOP! Make sure that the Arbitor is in the Passenger Seat, 
If not he will just shoot the Grunt. Get out of the Warthog and turn your Camera left. You 
will see a little Grunt fighting off Infection Flood, the little Head-shaped ones. Destroy 
all of the attacking Infection. While you are doing that the Grunt will start saying things 
like "Please take me with you! I'll shine your Boots, I'll do anything. When you hover your 
Target over the Grunt it with turn Red. DO NOT SHOOT! He won't hurt you. Destroy the Infection 
and a Cutscene will start where the Arbitor gets out and walks over. Master Cheif is talking 
to the Grunt. He allows the Grunt to come with them. The Arbitor says No and points a Plasma 
Sword at the Grunt but the Cheif blocks the Arbitor and say you could lead a new Covenant. 
He could be usefull and the Arbitor Growls and puts the Sword away. The Grunt runs and jumps 
onto the Gunner Seat and the Cut Scense Ends. Now end the Game as normal.