Also German tanks discontinued the excape hatch on the side of the hull between the tracks on all mid to late war models, like the Pzkfw IVH we have in the game.Vishion slits are indead weak points but they have covers that are armored and builet restant glass or periscopes,resestant to MG fire, not tank fire.
Another point 99% of the time the M16 is not firing at the weakest point on the panzer the "top" it is firing at the front side and rear, sombody show me whear the the 50 cal pentrate this armor thicknes at any distance, please.
Also I can buy it imobelizing the panzer(osty) maby even knocking out the gun(osty) but not exploding theam,like I have done several times this tour(and last).