Here's my spray paint list:
Chest/back armor: Rustoleum Spruce Green
Helmet top, cheeks, gauntlets: Krylon Moss Green
Helmet brow/cheek: Rustoleum Heritage Red
Knees, shoulder: Rustoleum Equipment Yellow
Shoulder: Premium Decor Sunflower Yellow
Jetpack: Krylon Italian Olive
I also used various gray and black spray paints for weathering.