7,5 cm Panzerabwehrkanonen/Pak 40 a German Anti Tank Cannon that Shoots Armor Piercing Composite Rigid(APCR)/High Velocity Armor Piercing(HVAP) Shells that can penetrate a lot of tanks like the Shermans but later shermans like the M4A3E2 Jumbo that has an extra inch of cast armor in the frontal hull.