It is some time since I posted anything naval wargames related, as I have been otehrwise engaged recently. But I was browsing the latest issue of the Naval War College Review recently when I came accross an article [1] tangentially related to naval wargaming as it was using the Western Approaches Tactical Unit as an example.
I have mentioned WATU in a previous post https://navalwargames.blogspot.com/2018/08/western-approaches-tactical-unit.html where there is a link to a pretty good paper from the Military Operation Research Soc.
In Sloans paper he discusses WATUs analysis of U-boat apprach and attach tactics against convoys.
[1] Sloan, G., The Royal Navy and Organizational Learning—The Western Approaches Tactical Unit and the Battle of the Atlantic, https://digital-commons.usnwc.edu/nwc-review/vol72/iss4/9/