Suggestion: re-run the Doom cover offer at 250 CP in the near future. The devs have done it before. (Can’t recall the exact circumstances.)
Option B is waiting a year for his next 5E.
I feel like the devs are just treating us terribly lately and maybe this would be a small nod that you appreciate us.
I have 250cp saved for exactly this eventuality. I don’t have 500 so it’s a pass which is a shame as it’s a good opportunity to pick up another doom cover since I’m pretty short of him.
Happened with doom, now happens with carnage. They can change correct but will not, welcome to ‘they will forget and continue losing resources eventually’… Reminds me when my mother force feed me food i did not like with the promise it was the last time… 
Opps, reminds me when i had to wait discounts for hero slots to buy a couple more