DEV add simply a ww1\interwar event in simulator! top event ever
Another option to implementation is rank 0 as show this picture (as several people have already suggested here):
Practically the possibility to do research from rank 1 to rank 0, whoever wants to (reverse research - from more modern to less modern). Rank 1 remains the starting tier, so research will not be extended for those who go for more modern machines. The advantages over what is proposed in this thread are that all vehicles remain in their own folders and no additional folders are needed that can be used for other types of machines such as submarines.
This is a much better implementation. Had exactly this in mind when I was playing. Rank 0 alone, though, would probably need new maps. Most of the ones we have in rotation currently are terrible. Not only in aesthetics, but also gameplay wise with the ww1 vehicles. Already hate when this happens in-game, youβre in early 2000 with a pz3 and it just kills any sort of interesting immersion.