Fireball

Factual error: German officers would not be present for the search of explosives and would certainly not take part in disarming them. Procedure would certainly have explosives experts do this while officers commanded the battle.

Fireball

Plot hole: When the Germans are drilling through the doors with jackhammers the drills are not touching the door and are just being held near the sides of the breach.

Fireball

Plot hole: When we see the two disguised commandos driving through the fortress there's a Soviet driving in the convoy. You can tell because the sides of the turret are curved down. This shouldn't be there as the Soviets never fought in Greece.

Fireball

Audio problem: When the Germans are banging on the bunker door with sledgehammers the clanking sound always happens when the hammers are not hitting the door.

Fireball

Revealing mistake: When, during the final battle in the town, a German truck explodes from a grenade, it explodes from the inside of the bed. This isn't possible because the truck is covered by tarp and we can't see any way the grenade could get into the bed.

Fireball