Panzer Killers by Artem Drabkin is a superb collection of first hand, real world accounts from WWII east from and is an eye opener for the tactical gamer (as is the sister book, T-34 in Action, which today is sadly not on sale)
anyway, £20 down to £1 at the moment at Amazon UK for the Kindle, well worth a pick-up.
Here's my own short review LINK
https://commanders.simdif.com/a-good-read.html