Check out this for one option for ArchiveX paints:
Thread
Here's what I used on mine:
Dome and cheeks - equal mix of Light Green and GN Grey Green
Mandibles - D&H Caboose Red
Dark Red Weathering on Mandibles - 2 parts D&H Caboose with 1 part Engine Black
Mandibles Grey Damage - SP Lark Light Grey
Upper Cheeks - Engine Black
Kill Stripes - SP Armor yellow faded to SP Scarlet
Back Panels - 2 parts Dark Green with 1 part Engine Black
Back Panel Tan - Dark Grime
Left Ear - Coach Green, Reefer White and Caboose Red
Right Ear - Light Earth, SP Lark Dark Grey
Dome Damage - SP Lark Dark Grey
So, ultimately there are a lot of options. I mixed colors until I was pleased with the result visually. Good luck!