I am making an AFV club sdkfz251 and Dragon sdkfz250 with white wash.
My first question is the decal coming with AFV club kit, what the tactical marking is (number 14)? Is it correct?

2nd question would be the decal purchased from Archer shows different colours and also has crest shaped insignia marking.
When the German would use yellow or red or black? When they would choose the simple "Y" marking or the crest one?

If my colour scheme is white wash, what would be the best colour I should use?