"Panzer Tactics"

In case you're interested in what using tanks was like in WW2:

http://www.farposst.ru/2015/11/16/Panzer_Tactics__German_Small_Unit_Armor_Tactics_in_World_War_II.html

(This is the English edition of a German book.)

also recommended:

http://www.achtungpanzer.com/

 particularly

http://www.achtungpanzer.com/panzer-profiles-1917-1945

http://www.achtungpanzer.com/panzer-statistics.htm