This Child Liberation factory can be found in the north east of the Lambeth borough right on the border with Southwark. It features three groups of children to liberate and a single alarm bell which we’ll need to avoid activating to complete the optional objective.

This Child Liberation activity is actually quite an easy one to accomplish the optional objective. Climb to the roof of the building and locate the Sniper on the small ledge on the northern side of the building. Air assassinate him and enter the opening behind him to find the alarm bell. Whistle/assassinate the pair of nearby Blighters and then sabotage the bell so that it can no longer ring.

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Disabling the alarm bell will make things easier (left). Afterwards kill the foreman (right).

Once sabotaged we can cause as much or as little chaos as we want and still earn 100% synchronisation. We’ll need to kill the foreman who is located in a small office area on the southern end of the platform with the alarm bell. There are also three groups of children to liberate who can be found in the following locations:

• Right next to the alarm bell on the second floor.
• On the ground floor by the open doorways.
• Beneath the stairs on the ground floor.
  Once you have killed the foreman and freed all of the children, the memory will be complete.