A powerful Super Mutant named the Green Terror has rallied a huge amount of Super Mutants, becoming a even greater threat than the Institute. Green Terror's forces began attacking the other super mutant groups, killing or forcing them to join. No settlement is safe from this great threat. The Sole Survivor's only chance to defeat this threat is to join up with a group of Brotherhood of Steel soldiers. Together you guys finally found the Green Terror's base but it seems him and all his super mutants are dead already.
Something even more dangerous has killed them. You and your Brotherhood squad are soon ambushed by a strange group of Raiders called the Death Skulls. Only you survived but you must make haste as you discovered their plans from a nearby terminal. They are planning on bombing Diamond City. The Sole Survivor rushes to the city and intercepts the death skulls just in time to stop them. Their leader has retreated up to the mayor's office and you must get up there and have a one on one duel with him.
Reward - A death skull mask with 15 def rating, 10 energy rating, and 0 rad rating.
Charisma - if high enough, you may convince him to jump down to his death.
Evil - You can join him and blow up diamond city so make sure you finish all your quests here before you decide to do this.