P.S.: after analise it again i discovered another british sign on his shoulder shield that its actually bigger and more noticeable than my previous discovery, (slap my forehead again).
After several minutes of analisis and contemplation i coulnt find out where was the british part on it, i looked for 007 stuff, a crown, a tea cup, the big ben, i got frustrated, then i focused my view on this guys rifle, i zoomed and finally i slaped my forehead. Your brother in law must be a very cool person if the character is based on him.