This is the closest you can get to the Death trooper within game on medium.
Helmet requires Tyrianization - which means you work with what you get.
Optional Gas Mask instead with GREEN visor.
I'm not going for "amazing screenshots" or anything like that, Im after the actual appearance of the outfit. Armor used:
Forgeman Headguard: Shadow Abyss on all
Heritage Shoulderpads: Shadow Abyss on all
Elegy Chestguard: Shadow Abyss on all
Falconer's Gloves: Shadow Abyss on all
Falconer's Leggings: Shadow Abyss on all
Elegy Boots: Shadow Abyss on all