Anthony,
This is the list I've managed to compile, based on just the colors listed in the instructions. If you need others, let me know.
Satin Black X-18
Silver X-11
Yellow XF-3
Titanium X-32
Blue X-4
Dark Grey XF-24
Dark Green XF-26
Desert Tan XF-57
Flat Black XF-1
Flat White XF-2
Green X-5
Gunship Grey XFF-54
Medium Grey XF-20
Olive Green XF-62
Red XF-7
Bear in mind, some of these colors are open to interpretation, so if you see one that would look better, use it!
Welcome to the forum, and good luck on the build! Be sure to post the pics when the kit is done!
demono69