p.s. - the green uniform and bugle cap badge were generally used for rifles regiments, chasseurs, jaegers. interesting that an Argentinian mounted unit uses it...
is there a specific unit & story?
p.p.s. - i'd have ditched the red cap bit or 'accidentally' dyed it a darker colour, (or used a nice dark green plume of feathers

). snipers prefer a head shot, but no reason to make it easier for them.