I go for Private Ryan, just because the realism, and the sound work is unsurpassed, band of brothers is ten hours, and they just couldn pack in the deluxe detail of private ryan which was a two hour Spielberg blockbuster.
Its a pity that a Finnish war film made in the late 90s you probably cannot get. Its name in english is> The road to lake Ruka. And it also has individually recorded, bullets from different guns, and the guns have a different report, also its based on a true story, of a group of soldiers formed into a recce group in the start of the continuation war ( thats the summer of 41 )
I'll put a picture from the end of the continuation war of Finnish troops trying to keep the line against the june 44 soviet attack.