This Child Liberation activity can be found in the center of Westminster borough, just south of the Wellington Barracks. This particular activity encompasses a pair of buildings and between the two of them there are four groups of children to liberate, a foreman to kill and a pair of alarm bells which we’ll need to avoid activating to complete the optional objective.

Despite the presence of multiple alarm bells in this area, it is actually easier to take both of them out before you start. They are located to the north and south of the restricted area, the southern alarm bell is in the open and guarded by a single Blighter. The northern bell is just inside the main gate on the northern side of the restricted area and guarded by a stationary blighter and a patroller or two. Disabling both of them will allow you to cause as much or as little chaos as we want and still earn 100% synchronization.

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One of the bells can be found south of the main building (left). Two groups of children and the foreman (left) can be found inside the main building.

After disabling the alarm bells, We’ll need to kill the foreman. Kill the Sniper on the rooftop of the taller building and find the entrance leading inside. Head on into the building’s interior and find the stairs leading down. Hang out by the top of these and wait for the foreman to patrol by the base of the stairs. Whistle to draw him to the top into an assassination.

Once the foreman is out of the way, there are also four groups of children to liberate who can be found in the following locations:

• In the south corner of the floor of the main building where the foreman was patrolling.
• In the north corner of the floor of the main building where the foreman was patrolling.
• In the northeast corner of the main building at ground level.
• At ground level in the smaller, eastern building.
  Once you have killed the foreman and freed all of the children, the memory will be complete.