I’ve always been a fan of the concept of these mini-events. They are relatively simple and provide decent rewards commensurate to their simplicity and each stage can be knocked out quickly. I don’t see any downside to how they are formatted in that regard.
However, it gets incredibly boring and samey when most stages of history pages require lower end aircraft/tanks. It appears that Rank II and low end Rank III dominate the stages, only very rarely venturing above that.
As well, WW2 Eastern Front seems to the dominant theme, again, only rarely venturing past that.
Please consider in the future adding a little more higher end Rank III and above, and expanding on the nations involved more often.