Board Thread:Fun and Games/@comment-39.109.167.209-20170102021420/@comment-30645975-20170102034518

For you, the correct command would be:

/summon lotr.Balrog ~ ~ ~ {HiredNPCInfo:{AlignmentRequired:-66666,CanMove:1,IsActive:1,HiringPlayerUUID:97c75380-0fb0-4bf2-ba20-48c0b1cc16d4},Equipment:[{id:Weapon},{id:Boots},{id:Leggings},{id:Chestplate},{id:Helmet}]}

You would put what equipment you need in the bolded space.