It's just like any other story mission, and it's required to advance through the story.
All the other story missions have icons though. I don't want to be free roaming and thrown into a mission that auto triggers out of nowhere.
No there isn't a special torture icon, it's one of the story missions. Like the other guy said its about halfway through the game.
No it's not. The other story missions you walk into a marker. This starts buy getting a phone call during free roam and the mission starts.
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