Currently trying to get a mastery badge in any of my tier 6 ( or above) Russian/Chinese tanks, for campaign purposes. I understand about the constantly moving perimeters of calculation however when you get 920 base exp in the IS 5 you expect to get at least 2nd class.....but nothing. Many of my tanks already have one so limited in choices ...and the campaign mission is obviously not retrospective. Why does not WG not have an updated spreed sheet of what the current qualification, this way players know what is expected of them. I know about the replay system but I should not have to look through a system that is both time consuming and often not up to date. The aslans mod pac does give indications but for the IS 5 its got no figures at all ? Anyhow thoughts anyone. ?