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Just a little pointer page;
At first Ali was part of the mission to observe. Then he was told to pass every information to the Chief, which made him suspicious, but he still did as he was told.
Then he was told to sabotage the mission about which he reported he tried and failed, but never actually moved his lazy ass to do something.
He kept helping the homies to get closer with Nazma which didn't work unfortunately. He mostly kept the neutral stance, neither siding with homies nor selling them away.
He never gives any useful information to the Chief to protect Nazma specifically.
One of the reasons why Raj was able to get back to homies after the disaster. As no one except homies know about the existence of gadgets (aka mind links).