If my monitor display is anything to go by, the the ABU pattern is a modern take of the tigerstripe family of camouflage patterns? This reminds me of my mando-merc concept based on desert-tigerstripe (which I picked as it wasn't a recognised uniform of any armed/defence force - to the best of my knowledge)
In any case, have a look at the pattern (whichever one you decide upon) and you'll notice that:
a. there is usually a dominant colour throughout the scheme
b. the pattern repeats itself - look out for distinctive shapes and how many times they appear within a yard
c. once assembled, uniform pieces rarely look "uniform"
Using the colours that appear in the camouflage will help to tie the armour, vest, and accessories together.