He narrows his eyes, tensing his fists in readiness. The fools had not yet spotted him. He readied his fists, having long compensated for the metallic alloy in his bones lending them extra weight. He lunged in between them, taking away the advantage of their guns, dealing a ferocious blow to one of them.
SpoilerWS 61+50 for All Out Attack Charge, possibly +30 for Unaware target. EWS111/141 (1d100) That's a lot of DoS, smashing the leg.