Some thoughts:
It's a great idea because so much work already done: atmosphere, plot, characters, etc.
But I agree with others that only parts of it are suitable for OFP. Real life can be boring in parts, so when you make a movie or game you have to choose the best, most interesting parts. In OFP we have the added problem ofmaking everything work. I would say pick 4-8 or maybe more, 10, super exciting episodes. The first misison, taking out the 88s (which turn out to be 105s?) was fantabulous: everything OFP is good at...squad takes on a 4-gun emplacement guarded by MGs, soldiers firin the guns, getting the enemy confused so one gun crew fires on another, etc. 1 man lost, then when reinforcements come the idot squad leader gets killed, etc. And a real need to take out the guns, which turn out to be diff than the ones they thought they were attacking.
In same vein, the town battles are scary and amazing. So was ardennes, altho that was essentially avoiding artillery and hoping for best.
The concentration camp would be difficult and boring...you'd probably need new civ prisoner addons. The trainign camp Caheugee (whatever it was) might not work geat in OFP (have you used the obstacles course stuff? Clipping and wall weirdness), but if it ws mostly a cut-scene intro, and short training, combing it with para training and few training jumps, it could be an awesome set-up/training mission to add atmosphere.
Just my thoughts. Def also need the ceme-de-la-creme of the WW2 addons/mods.
It is exciting and maybe could be a Team Effort - not just assigning duties but maybe "episodes"...
PS - Legality of title - tho I'm not an expert, I deal with this stuff a bit: titles (and ideas) can't be copyrighted, tho film titles can be registered for a few years so that other films can't use the same title for a certain amount of time. (note for merchandising some titles are registered as Trademarks, "R" in a circle, or applying for reg "TM" - these are protected, like the singer's name "Billy Joel", "Star Wars"). The story is history and while the books/films can't be copied, the story itself is public domain.