Painting a WWII German figure... (help needed)

Recently I've purchased the Zvezda 1/35 Pz.Kpfw. I ausf. B, It comes with one figure, it is a man with an overcoat... somebody told me that I must paint the overcoat Field Gray... well, Model Master makes a Geman Uniform Feld Grau... is it the right color?... another person told me that the required color is a greenish gray... another thing: the figure's pants and shoes must be painted black, but I think it will look ugly when painted, perhaps I can paint the shoes with a different color or add some white to the black for painting the shoes... I don't know... Suggestions?... Thanks in advance.