 However, this account is contested by the German tank's gunner, "Gefreiter" Thaysen, who said that his commander ordered to back up, hitting the Sherman with its rear.Thaysen's testimony also contradicts Gorman finishing off the Tiger II with a Sherman Firefly and capturing the German crew.Later in the war, Gorman took part in Operation Market Garden, the unsuccessful attempt to break through German lines in the Netherlands and advance into Northern Germany.