Krusty: Way I heard it described was VERY careful use of an exact-o knife or razor to chip off small bits of the "paint."
Taylor: With the Helldiver you're pretty much going to get one of two camoflage schemes:
1. The classic "tricolor" scheme, consisting of Insignia White underneath, Intermediate Blue on the sides, and Non-specular (Flat) Sea Blue on the upper surfaces.
2. Glossy Sea Blue over the whole aircraft.
The Testors Model Master paints pretty much follow the Federal Standard system, so you can be reasonably sure that their colors will be pretty close to historical.
I know for certain that with the Tamiya paints they do NOT list the FS numbers, so it'd be up to you to find a reference chart. I don't know if this is the case with all Japanese paints, tho.