At the HBO Band of Brothers 2019 Reunion in Normandy, Capt. Dale Dye (Who played Colonel Sink in the series and is also a Military Historian and Advisor) explains how basic Military Artillery works and how the German 105 Howitzers operated at Brecourt Manor on D-Day.
Discussion begins at 2:25
To see an excellent overview of the Assault on the Brecourt Manor Guns on D-Day by Lt. Dick Winters and his Fire Team, watch HERE.