Each match (1941,'42, '43, '44, '45) would be its own game for the purposes of standings. SWO and I are doing one right now, I think we're finishing up game 4 (1943).
We're probably going to need a handicap of some type to keep it competitive. Here's the list of units that pop up for me after 1940. Br. 810 '41 Jean Bart '42