1) I wanted to change the RTR camouflage simply because it is similar to a WWII German Tri-Color.
2) Seeing MrChef's attempt at Black Basing, I wanted to try the technique. Shock! I had no black acrylic primer (I will get some.) However, I do have plenty of Vallejo's Dunkelgrau primer, seemingly close enough for the effect. I also do not have any photos of the all-black stage


3) Now I have sprayed on some Vallejo FS Olive Drab, good ol' " 'Murrican" tank color. I picked up two online tips for more easily "marbling" the paint. One is to use pulled-apart steel wool (https://www.youtube.com/watch?v=d1TJSLoQqZY&t=143s). The other is to use a special mask available on eBay (https://www.youtube.com/watch?v=bnerFV2nT_I). Since I had steel wool, I used the first. Here are some photos of the results. More anon (i.e. soon, well, maybe soon).