Beating Halo 3 WITHOUT Destroying a Scarab?

Halo 3 is known for its common Scarab battles throughout the campaign. In fact, it has the most Scarabs of any Halo game with four. But, is it possible to beat Halo 3 without actually destroying the Scarabs required to beat the mission? Let's give it a shot!
SKULLS: Tilt, Cowbell
DIFFICULTY: Any
NEW DISCORD: / discord
MUSIC (In Order of Appearance, by Karl Casey ‪@WhiteBatAudio‬ ):
The Beautiful Ones
Anima
Hunting Grounds
The Disciple
Ghosts