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.
One of my favorite characters in Band of Brothers is Captain Ronald Spiers and one of his most memorable scenes is this one where he explains to Private Blythe the Secret to Functioning as a Soldier is supposed to Function in War.