The image is presumably a Russian PMC in Mali. Same PMC that is known to have killed and tortured a lot of civilians in Mali.
Camo is russian, weapns are russian, no Flag patches, but a very round and wagner like patch in the background. I say yes they are Russians. Combined with the fact that this is clearly in Mali (tone of the earth and style of the structures).
So truly thing about this post, and if it makes sense, cuz if one wants to dab on them americans the picture could just show a very high armed american civilian instead of a person that is maybe linked to war crimes.
You are not immune to propaganda.