For now I'm doing a squad in Universal Camouflage Pattern (the grey kind) and another in Multicam (the newer green camo).
Here's an incomplete figure in Multicam. I used my old tutorial (https://benssoldiers.blogspot.com/2016/12/painting-satisfactory-multicam.html) as a basis, but have added some additional fine washes and highlights.
Here's a contrast between the two. I'm doing the UCP guys as 10th Mountain Division in Afghanistan in the mid 2000s, and the Multicam ones as contemporary 82nd Airborne.