The guy at the end points out he heard the last CT behind him, he was right and potentially saves his life.
see he points out he heard the CT, which means the T could hear it as well.
its redundant, its annoying, it disturbs my own thought process, i mute all when im last survivor ALWAYS.
when i dont i cant think and i blindly listen to call outs and dont play properly. its my nr.1 pet peeve.