A message like that one appears when my computer goes auto-sleep then the game closes & I have to restart the missions again. It was 40 waves with yes difficulty and it happened before wave 28.
Check this post to see how much hell I have to go through again…
Also @InterAction_studios as the hard version of “Ricochet”:
It’s sad that we can’t earn pecking orders because there’s only 4 enemies. So could you add 1 enemy? Or make pecking orders back to 4 enemies?