I will admit.  I'm lazy.

Contrast is the way ahead.

Gurkhas wear a nice Rifles Green for their current ceremonial/ old fighting uniform.  Dark Angels Contrast if is then.

Webbing, respirator, putters are Snakebite Leather. The lasrifle furniture is Cygor Brown.

 Four more to paint up and 15 more to order from Kirton Games. 

Next?  19th Century Royal Navy in Spaaaaace. Time to put the order in.