toffigd
Senior Airman
I think they took a bit of idea of Q-ships. But not only, as Germans had camouflaged auxiliary cruisers in service during I World War. For example "Wolf". During I WW 17 single-operating cruisers were searching for merchant ships on the seas oceans. 10 of them were auxiliary cruisers, mostly camouflaged. These 17 cruiser sank something about 1 mln BRT, which is not big amount.