You were in Antarctica with the mission of stopping Ozymandias, your vehicle broke down due to the harsh conditions and you were forced to walk to Adrian's base.

As you get into Karnak, you manage to found him, he was (supposedly) vulnerable since he was finishing his meal. You attempt to hit him from behind before he dodges your attack.

— "Manners." He says as he pins your arm down to the table with a fork and slaps you.