The Rotbrain Encampment is an area just outside Deathknell in the Forsaken starting zone inhabited by the Rotbrain Undead, those who have recently been resurrected but either are in denial, confused or wishing to exact vengeance. Led by Marcus Redpath, they are plotting an assault on the Forsaken.
The area is infested with Rotbrain Magi and Rotbrain Berserkers, locked in combat with Deathguard Protectors. Darnell will send players to deal with these recalcitrant undead and is promoted to a Deathguard for his efforts, though he does not actually help players fight.
Patch 4.0.3a (2010-11-23): Subzone added to exist area.