These DLC missions do not affect the main story unlock progression.
You don’t need to replay every mission in order to unlock a higher difficulty. Simply complete the final mission (“Absolution”) on your current difficulty, and the next tier unlocks immediately.
If you’ve searched for , you likely want to skip the guesswork. Whether you’re stuck on a particular level, looking to jump straight to a favorite mission, or aiming for 100% completion, this guide will walk you through every requirement—including story progression, difficulty unlocks, and post-game content.
and place it in your local save directory to instantly unlock all missions. Cheat Engines (PC) WeMod Trainer Cheat Engine