Achievement sneering at Carl for breaking the game system to help kill a fellow crawler, rewarding a Platinum box.
Chickenshit Exploit! is one of the notable achievements Carl opens during The Ceasefire, and one of the ones that visibly angers him. Its text is a long riff on the tabletop rules-lawyer archetype — the purist who has memorized every guideline and hates you for having fun — before concluding that Carl took a very carefully built game system and broke the ever-loving shit out of it, then used that exploit to help kill a fellow crawler. It signs off with "Great job, cheater."
The trigger was teleporting the team's Card Totems into the battle between Quan Ch and Ren. Carl grumbles "Oh, fuck off," because Ren was never a cheater and The AI is simply being an asshole about her death. The reward is a Platinum Tserendolgor Box.
Achievement condemning Carl's rules-breaking intervention in the Quan-versus-Ren fight.