"Price, Gaz, and Farah have located AQ's true objective: a nuclear-armed ICBM. In order to stop a catastrophic attack, they must work their way up the silo to secure the warhead and rescue Alex." — Mission Briefing Alex: Their commander... he spared me.
Farah: Why?
Alex: He had a message. Wanted to deliver it personally... To you...
Farah: To me...? Who is this "commander"?
Alex: Farah, you're not gonna like this...
Farah: Alex... Who?
Alex: Your brother... Hadir.
Farah: Hadir is in jail.
Alex: Not anymore. He wants a truce. He wants to work with you... work with us...
Price: To do what?
Alex: To kill Russians...
Gaz: With their own weapons...
Farah: The warhead.
Price, Gaz, Alex and Farah look at the inactive missile with the missing warhead.
Price: That's Hadir.
Alex: He wants us to join him... or turn back... That's the message.