I am giving mine mixed uniforms. numbers are the Vallejo codes.
The Early War ONLY troops (like AT rifles) get 866 Grey Green smocks, 816 Luftawffe blue tunics, pouches and gasmask canisters, and either 830 German Field Gray or 881 Yellow Green tropical trousers.
Midwar troops get camo smocks (don't bother with the straight lines of the splinter pattern), blue tunics, and field gray or tropical trousers. Webgear is 886 Green Gray or 988 Khaki.
Luftwaffe Splinter looks like a base of 830 German Fieldgray, 872 Chocolate Brown stripes and spots, and 823 Luftwaffe Camo green spots.
I special-ordered the Late War FJ pieces, and they're getting either field gray or Italian camo trousers with Tan Water camo smocks.
Italian camo looks like a base of 873 US Field Drab, 823 Luftwaffe Camo Green and 874 US Tan Earth spots.
Tan Water is 886 Green Gray base with 826 German Camo Medium Brown and 823 Luftwaffe Camo Green spots, roughly 1/3 coverage of each, and a few spots of 823 German Camo Beige on the 886 Green Gray.