Advice on colours for bunker diorama - grey concrete or tri-tonal?

[Bill1974]

Hi all,

 

I have been making a diorama using the Tamiya Churchill Crocodile, some master box figures and a scratch built bunker that is in and around Normandy where a bunker is being assaulted by a crocodile and troops.

 

I have been trying to find information on what colours bunkers were painted if indeed they were painted at all?

 

Are they simply unfinished concrete or painted using a tri-tonal colour scheme, German yellow, green, red brown?

 

I can find very little info one way of the other.

 

Almost all the photos are either modern day, with no surviving paint or black and white grainy nightmares that don’t actually show much, I have found a couple of photos from Denmark of German bunkers that have been refurbished painted using the tri-tonal scheme but this is the only example.

 

Some much needed advice and info will be gratefully received 🤓

Edited March 4 by Bill1974