Thunder Unit - Space Marine is one of my latest creations. Points of inspiration for this concept was lots of metal gear series I'm playing lately, Kojima productions and also a bit of Mass Effect series. Soft used Zbrush, 3Ds Max, Marvelous designer, Substance 3D painter and Marmoset Toolbag. The insignia also is custom made and created in Adobe Illustrator.
Hope you like it.
Cheers