Haha, a great film
There are no dialogues and that make you focus on the film itself. Is it supposed to look like WW2 but not actually be it? The "Tschkkkk" guy looks like an American infantry soldier and the pilot like a German fighter pilot. Also, the weapon is clearly Kar98 and the helmet is clearly M1
(the mines look like Tellermines 42 to me, too)