Condor 1 is the call-sign for a military advisor working with the Colombian Army, in a similar fashion to Overlord in the Ranger Missions, often offering Intel and assigning new Objectives to Captain Marcellus and his team.
Condor 1 can be heard throughout the level Supply and Demand updating Captain Marcellus and his team. He is first called in when Marcellus, Sergeant Cortez and Private 1st Class Redueriis have finished securing documentation and are searching for Eduardo Perez. Later Cortez and Redueriis enter the fields and ask Condor 1 to do a scan for friendly units who reveals that there are no allied forces in the area, effectively designating everybody else as an enemy. As the fields begin to burn Cortez is contacted by Captain Kyle "Heron" Rickland but Condor 1 reveals that the Colombian Army has no record of the conversation.
Condor 1 often supplies information, such as not swapping to an unsilenced weapon or how far the player is form completing the mission, in the spec ops levels Snake in the Grass, Counter Sniper and Drag Race.