The scheme proposed by the instructions is the so-called "Licht und Schatten Tarnung" ("light and shadows camouflage", also known as "ambush camouflage").
It consists in dark yellow ("Dunkelgelb"), olive green ("Olivgrün") and red brown ("Rotbraun") patches with solid rounded borders, overlapped with yellow and green small triangles. It's clearly visible in the following historical photo:
(Only for discussion purposes)
The painting, after an initial coat of primer, has been performed in several phases. Each phase consisted in coats of base color and lighter shades, trying to apply the latters in adjacent areas, thus giving an even look.
You can see the final result in the following photos.