Doctor Charles casually strolls out an ally way, holding his M9 in his right hand and his shotgun over his back dragging a bag of spare "parts" behind him, he just been on a "scavenging mission" and managed to clear out a nest of zombies with his shoty.
Charles puts two fingers in his mouth and wolf whistles drawing a small group of zombies out, he spins the gun in his fingers and sets to work on calming them down.
As he sets to work the zombies crowd round him bolting the view of him out. (at this point you can kill them or just watch, ill leave it up to anyone reading this first)