Changes

*{{Endn|Note 1}}: It was not originally clear how a Space Marine's (non-implanted) lungs could operate without a ribcage capable of expanding and contracting. This was eventually addressed in some sources as a popular misunderstanding (in-universe); these clarified that the ribcage of an Astartes is still multiple pieces of bone.{{Fn|38}}

*{{Endn|Note 2}}: It is unknown whether [[Camba Diaz]] of the [[Imperial Fist]]s located the squad of human troops by their actual heartbeats alone or was simply citing his superhuman hearing as the squad attempted to remain stealthy while traversing the ruins. It is also unspecified whether Diaz can hear a human heartbeat up to or beyond a hundred metres with or without the aid of their helmet's equipment, as he was wearing one upon encountering the guardsmen and making said comment.{{Fn|22}}

===Conflicting Sources===