Was wondering if these vehicles were repainted for the raid? In period photos they don't seem to have either of the regimental nor brigade symbols like the Churchill tanks.
It's possible those markings in the rear could have been hidden from view when modified with a bumper?
Can't find any direct photo links, but in this pdf file, there are some photos of Canadian Dingoes based in the UK which do show full markings, particularly Hugo from the Three Rivers Regiment;
http://daimler-fighting-vehicles.co....%20brigade.pdf
regards,
Jack