Sturmpanzer I Bison



The Bison is the tier III German artillery. It has a hard-hitting gun with a good variety of ammunition types, but terrible mobility, armor, and health. Both of its engine upgrades are prerequisite unlocks from the Ltraktor, meaning they don't have to be researched on this tank, making this mastery grind very short.

15cm s.I.G. auf SdKfz 101
0 XP - leads to St.Pz. II (5,120 XP)

s/I.G.33 auf PzKpfw I
350 XP