ArtStation - Army combat suit - concept

ArtStation - Combat Astronaut

KREA - full body shot of a mech soldier holstering its rifle, Art Station, Trending on Artstation, cgsociety, concept art, cinematic, 8k, hyper detailed, ultra realistic, epic, high resolution, digital art, ultra

ArtStation - Sci-fi military armour character design / weapon concept

full body tactical military sci-fi female character

ArtStation - Exosuit for medium range combat.

Lady army pilot - 1.1

This 3D RKKA Shock Trooper Concept by Dmitry Bezrodniy (you can find him on Artstation) would make a really cool Tachanka Elite : r/Rainbow6

Concept Sketch Army

sci - fi soldier in heavy futuristic armor, earthy