Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Right after they're defeated, Gepard pops in with a Gunner and a Cannoneer, these are the Silvermane Guards that need to stay alive for the achievement.
Source: https://gamerant.com/honkai-star-rail-code-of-chivalry-achievement-guide/