Also - I dunno how well you could manage to do it, but you could show areas of damage to the flesh of the marine by scultpting/scratching as though he has been burnt.
(Google image search for burn scars)
I reckon the floaty idea works well, and also, if you have him forced against the wall ass suggested, you could better show the OSL.
(Google image search for burn scars)
I reckon the floaty idea works well, and also, if you have him forced against the wall ass suggested, you could better show the OSL.