How does Sin City finish Mike's task?

I haven't finished Mike's test task yet.

After Lao Cui stole the submarine, the mission could not continue because he didn't know Franklin and Lester yet. You need to start Mike's FIB mission, and do it all the way until you have tortured the witness and stabbed his beard. Lao Cui will drive the witness to the airport, and on the way back, he will receive a phone call from Wade.

The game background is mostly set in a fictional place that imitates American cities. The game mainly revolves around the setting of the open world. Players are free to decide when and how to perform tasks to promote stories. In addition, there are many additional tasks to choose from.

The game is introduced:

Under the influence of the ancient tradition left by Italian immigrants, the family has become an important part of American gangster culture. For those lawless gangsters, family members and relatives have an unspeakable position in their hearts.

This time, our protagonist, talented criminal Carl Qiang Sen (known as CJ by friends), suddenly heard that his mother was killed in his hometown after five years of quiet life. At this time, the "gang blood" in his body burned again.

Now CJ will return to San Andreas, and once again set off a new round of bloody conflicts among several underground forces in the infighting. This time CJ will turn to his brother and revive the Orange Forest family.