What happened to TYGER forces after Hugo Strange's death in Arkham City?

When Batman confronts the Psychiatrist, He gets killed by Ra's Al Ghul who was Hugo Strange's master. When Strange is about to die, he activates Protocol 11 which destroys the office of Wonder Tower, thus forcing Batman to flee the building with Ra's. After Batman lands, we can hear and witness in the game itself that there are still TYGER forces in the game, particularly the helicopters.
TYGER Command Center: All air units report in, Cease attack and return to base immediately. Repeat, return to base immediately.
So what happened to the TYGER guards, particularly those who are in the helicopter?
Follow-up question: Why didn't they attack Batman afterwards, considering that the Dark Knight is their target? Most likely they find out that Batman killed their Boss, Hugo Strange, but they didn't know the truth that Ra's Al Ghul killed Hugo Strange.
Best Answer
Most of the Guards had post-hypnotic suggestion, and it is implied that every Tyger Guard was either a hypnotized inmate or a mercenary who was mentally hypnotized to do strange's bidding. When Strange Died, they were like a chicken with its head cut off; they had no idea what to do, so they simply returned to base and awaited further order, however the GCPD came into Arkham city and rounded up the Tyger Guards and began dismantling Arkham City. In short, they had no more instructions, so returned to base/Arkham Island (if you unlocked that story) and sat around until GCPD regained control. In game, the helicopters de-spawn (to head back to base in theory).
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What happened to Tyger after Arkham City?
After Arkham City, the TYGER Guards were rounded up and were either imprisoned or killed.What happened to Hugo Strange after Arkham City?
By the end of the game you are able to confront him and find out the secret that Ra's al Ghul was Hugo Strange's leader in all of this. It was all Ra's' idea to rid the scum of this city, but Strange is stabbed through by Ra's al Ghul. He dies just before the explosion of Wonder Tower.Did Hugo Strange survive Arkham City?
In his final moments, Strange breathed the passcode: "Wayne". Batman threw himself and the enraged Ra's al Ghul from the Tower moments before it exploded, with the Head of the Demon being killed himself shortly afterwards.What does Tyger stand for Batman?
Base of Operations: Tyger, Tyger, protect the night. Hugo Strange recites the TYGER oath.Hugo Strange - Batman: Arkham City
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Images: Tom Fisk, Sunarman 2.0, Tom Fisk, Tugrul Kurnaz