[2021] No Retreat and Rear Echelon appear to be exclusive to Kickstarter backers

Originally posted by Teh_Diplomat: Good for them, I bought the game 2 days ago; while they bought it over 2 years ago.

Welcome to the frontline!

Also that's really chill of you, so thanks!

Don't forget to grab the 'Silver Vanguard' DLC though, you can download that for free until August 10th.