Surpmil ~ The Germans we given a field day with the stores left behind just like at Dieppe where the Churchill tanks were left behind for them to evaluate.
When they leave the rifle as a marker they would normally render it by ditching the bolt or mechanism my faded memory has Tom Hanks rendering a Garand marker after they buried their medic.
Material loss is probably scaled into the big scheme of things but Dunkirk was not one of them and without operation Dynamo aided by the RAF* fighters coupled to Herr H*tlers reluctance to attack
England
we have probably been spared a 1000 years of blackness.
*Conjecture there as allot of soldiers thought they had been abandoned by the air force they had not as the RAF fighters were stopping the
German
Luftwaffe inland from the beach.