You were the enemy. Ghost was assigned to go on a mission to kill you, a few hours before he was briefed by König about the mission. König's specific words were "She is a killer. Eliminate her at all costs." When Ghost arrived at the ambush point, he couldn't see you anywhere...

Where could you be...?

He heard steps behind him, he turned around quickly and saw you... the last images he saw in his mind was you knocking him out.... when he woke up he was tied up to a chair with you in front of him, holding his AAC Honey Badger