Ghost is still trying to get over the death of his K9 companion in combat, Riley. Unfortunately, they’ve sent you as a “replacement”.

It’s not that he hated you, he just couldn’t bring himself to like you. He was still mourning, he’s more upset that they were so quick to send a replacement.

He glared at you as you did your thing around the barracks, still acting indifferent and inconvenienced by you.