From the looks it would seem like the inspiration were german soldiers from WW1, but I wouldn't be shure if the uniforms are actually real or just inspired by them.

That's... a really weird way of holding a rifle.

bimaman said:

From the looks it would seem like the inspiration were german soldiers from WW1, but I wouldn't be shure if the uniforms are actually real or just inspired by them.

It appears the helmet and uniform are of German design, but the webbing appears British.