Ahhh ok I think I see what I did wrong here. First, I needed to do a 4 way, because I’m using 4 textures. I failed to see that because I didn’t think about the color White as a vertex color. My main problem was solved as soon as I plugged in the white channel(main channel?). Now when I paint red, I get red. 
Heres my final setup:
You might be able to tell why the documented stuff confused me a bit since they weren’t trying to match colors lol. Technically I guess I can still have one more texture with that alpha node. Anyways, Thanks for the help Luos! I appreciate it.