This is almost complete, but I have not fitted it with a backpack.
One of the features of this particular chapter of the loyalist marines is their self harming initiation ceremony involving the removal of one of their arms and its replacement with bionics. The forearm of the left arm was removed, two plastic rods fitted into holes drilled in the hand and the elbow.
A mark 7 head with additional optics was used to indicate their ideology of metal over flesh.
I just need to find a suitable backpack, do some last clean up and paint, and this is ready to go.