didn't you read he needs to be hit at an 90 degree angle to tank those hits if he hadn't his defense is not as strong
Surprisingly, the killer was still able to activate his exoskeleton in the perfect place to protect his body from Mark's punch, but no matter how strong his exoskeleton was, there was nothing that it would do against a punch that had been multiplied exponentially like the Divergent Fist! The killer felt something break inside his body before he was launched like a rag doll into the air!