Night Witches has a 33-mission main campaign (with a 6-mission alternate progression track) that takes the player characters from the founding of the 588th Regiment all the way to the end of WW2, in the skies over Berlin. I have only run 1/3 of it, but there's at least one podcast that's trying to get all the way through...
You can probably expect some attrition, as casualties are almost a certainty during the campaign.