Suit up, get prepped, we're heading into the Schwarzwelt!
This is the Demonica worn by the main protagonist of the game SMT: Strange journey, while in his full gear perpared to venture forth into the unknown area, known by the U.N in the game as the Schwarzwelt. Other npcs in game wear similar suits, however their uniforms are slightly different. For instance, the white on the side of the protagonist's olive suit, is often other colors on the npcs in game, Red=Strike Team (Assault in case any hostiles are present, Fact: They never prepared for that kind of assault)  Cyan=Medical Staff, Gold=Commander(Only One), and as for the Protagonist, White=Only the main protagonist.

The one in the background is a demon from the game  and series: Doppelgänger
Side Note: Since Doppelgänger from the game is basically just the Protagonist with part of his face blurred with darkness it may be the next skin I make, no promises though.