Hello I think I may have already found where the 4th Airlanding Anti-Tank may have been on the 24th March 1945 - Hamminkeln, East of the Rhine - being the CWGC date for the death of Bombardier Arthur Cooper. I'm guessing from their name that they were an Anti-Tank Battery dropped/glidered in with their kit but I'd appreciate a bit more insight into their structure and how they operated.