Idiot Ball: John was working for Shiro Yanagawa only to get to Rogue. However, his partner Tom Lone shoots him to save John. As payback for cheating him on his chance to finally capture Rogue, John gave Tom's address to Shiro. He thought they're just going to beat him up, but he didn't know they'd sent Rogue. However, after Rogue killed his family, Lone kills him, and was able to pass Rogue off as himself while Lone became Rogue.
Kill and Replace: Officer Chang sets this in motion after he kills the real Rogue and takes his place.
Let The Boss Win: All of Chang's men fear the consequences that may follow should they actually score a hit on him in sparring. When he is momentarily distracted, one of them accidentally strikes him, and the minion fully expects the worst. Instead, Chang seemingly subverts this by reassuring the terrified mook that it was Chang's own fault for being distracted and congratulates him on the hit. Then he double subverts this by killing the poor guy anyway.
Not Himself: Shiro ordered Rogue to kill Li Chang. But he seems to show reluctance when he's ordered to also kill Li Chang's wife and daughter. Shiro's daughter Kira points out Rogue that he never had problems killing women and children before. That's because he's not Rogue.