They all just popped for me. The other week I had played through the whole Tirailleur on hardcore. Last night I had played just the last act of Nordlys on hardcore. And tonight I played through all of Under no flag on hardcore. I wonder if you just need all your war stories to be set on the very last checkpoint in hardcore? I think how I messed it up is I would play one story all the way through on hardcore and then immediately go back and play on easy to get the letters, etc. before proceeding to the next. That's my play by play on how it finally unlocked for me. I'm sorry if it still doesn't work and I hope you guys get it soon.
