The so called fighter bombers were mustangs, dont think they had bomb racks.
Tiger was a T-34. No way a Tiger was as nimble as the two depicted in the movie.
I would think most elite unit late war Kampfgruppe had mobile artillery assigned or at least had battery access to divisional artillery. After all, this was supposed to be one of two bridges available to cross that river. Any effort to secure it would have been a)better planned and b) better supported.
Tactical battle at the end has major issues. No units in an urban fight would just walk past buildings before they were secured. Its also highly unlikely that any combat hardened German soldier would just walk past a cowering enemy soldier without showing him the pointy end of his bayonet.
Rushing headlong into a known MG position....and not using the trained sniper in the group to pick them off! Also sending the medic in with the rush was not a great idea.
Its highly unlikely that a bunker that large and that close to the beach would have survived the bombardement of NOBA and air attacks. If it did, it would dominate the surrounding area to such a degree that no attacking units would survive near it. Grenades could be tossed through the openings onto the beach below, exploding overhead and showering shrapnel on the troops below. To think that it is just a matter of opening the door and tossing in a nade or two is laughable. I doubt the back door to a bunker would be that easily opened, nor would it open straight into the bunker.
The mortar round idea just seems lame.
In fact, the whole idea of sending a captain and a sargeant off on a SAR mission with only 6 other ppl, one of whom was a medic and another a translator, is kinda lame.....but thats hollywood for ya.
Thats about all I can think of and I havent seen the movie in a couple of years.