Can you beat Halo CE with only the pistol?

Today i take on a pistol only challenge in Halo Combat Evolved to see if and how far you can make it in the game with only a pistol
Challenge Rules:
I can only shoot with the pistol
I can't use grenades, vehicles, or any other guns to kill enemies
I can't use power-ups like overshield and invisibility
I can't use melee
I can however use the carrier forms to kill flood by blowing them up
I can use cooked grenades that enemies drop to kill enemies
Marines can kill enemies for me

Видео Can you beat Halo CE with only the pistol? канала Rocambasco