Anyway, heres the process I used:
1: Search for bowflage throughout all of local hunting/gun/bow/surplus stores and internet. Finally stumble across some several months later at a surplus store. Seriously, if you find a source, stock up, you'll never know when you'll find it again. I bought out my location and barely had enough to do the M4. Buy twice as much as you think you will need. It requires a fairly heavy coat in order to look good. Plus extra for touch up work from rubbing off of high traffic areas as well as from cleaning.
2. Tape up anything you don't want to be painted, ejection port, internals (remove bolt) optics, irons, top rail, inside magwell, etc...
3. Start with lightest color, apply over entire rifle. Using something to cover up areas of the rifle (I used cardboard cut into irregular shapes) apply darker colors over to get a pattern. Repeat with other colors as necessary. Wait to dry, and touch up work as needed.