Veteran Difficulty Trophy Glitch?

[tanner9]

I just completed the game on veteran difficulty and I was awared with the 'Burning the Burden', however I never received the War Hero or Hardened War Hero trophies, have I missed something here?

[legndorock]

Hardened War Hero Gold Trophy
Complete the game on Hardened or Veteran difficulty. (Solo only)

Finish up to, and including, Downfall on hardened or veteran. Also refer to 'Bearing the Burden' for veteran tips. Congratulations on finishing on hardened/veteran.

This trophy is glitched and this is what legndorock has to say about it:

"To unlock Hardened War Hero you must have beaten the game on Hardened or Veteran difficulty. Be aware though that even if you've completed the game on Veteran and even have all the trophies to prove it there must be a Hardened or Veteran level skull under the level when you go into the mission select screen. A glitch occurs that erases all of your story progress when you do things like buy the map packs for the game. If this has happened to you just go back and complete the levels on Hardened difficulty to get this trophy. the levels will seem almost too easy compared to Veteran so don't worry about it".

Taken from the Trophy Guide by the way.