An accomplished fighter who's seen more action in more conflicts than he can comfortably remember, Morrill is a loyal Defender in Protector McGraw's service. He is in charge of patrolling the D.C. Metro Ruins and clearing the almost constant stream of super mutants that seek to overrun the Outcasts' small base of operations. Recently, super mutant activity has increased to such an extent that he has transmitted an emergency radio broadcast seeking assistance.
He then stays outside the facility with the remaining Outcasts to defend against (periodic) attacks from the Super Mutants.
Aiding the Outcasts: He is the one responsible for sending out the emergency radio broadcast that brings you to the Outcast Outpost. Upon arrival at the outpost, he sends you down to speak to Protector McGraw.
When wearing Outcast power armor, he will act casually towards the player. When wearing anything else, he will respond negatively and tell the player off.
It is possible Morrill may be killed en route to the outpost. This does not affect the player's ability to enter the outpost and speak to Sibley, and the quest will proceed normally.