13. Despite his distrust of machines, John knows the importance of Kyle's rescue and that Marcus is the only hope he has. He makes a deal with Marcus, who goes inside Skynet Central. While there, Marcus is told that his purpose had been what?
From Quiz Terminator Salvation
Answer:
To infiltrate the Resistance and lure Connor to the Skynet base
Skynet had the perfect opportunity to eliminate the resistance; their fatal flaw was counting out Marcus's humanity remaining intact. The Resistance's new weapon against Skynet, a hidden frequency that could shut down the machines, turns out to be a Skynet trap. Instead of deactivating the machines, the frequency is a tracking signal that leads Skynet straight to the Resistance leaders on their submarine. Marcus had performed his mission flawlessly, though unwittingly, by luring John Connor and Kyle Reese right into Skynet's hands. However, once he is told the truth about himself, he refuses to side with Skynet. Instead, tearing the chip from his head, he decides to help Connor.