Ya know in the campaign Allies where you land Normandy, use those flame-throwers against those tall ships. This is how you damage LSTs.
In the mission "Saving Private Bryan", just after the all the Germans on the beach are knocked out, use the "sweep mines" button on the sand. You might find the same mines put on Normandy decades ago.
german Konigster[?]: Use a howitzer during "House-to-house fighting" Direct it towards a German Konigster, and if your lucky enough, you may see the treads fall off in front.