Rewards: Pounds: 750 (+150), EXP: 600 (+150), Extra: Schematic - Mirage Gauntlet Schematic
Challenges: 1. Do not let the target exit the factory.
Protect Edward by racing towards his carriage and killing any Blighter attackers. You can either ram them or go to the roof of your own carriage and throw knives at them. When you've defeated all three attackers, hop to Edward's carriage and drive it to the factory.
Climb over the wall near the gate and assassinate the brute. Climb to the building's roof and use Eagle Vision to scan all enemies inside; take particular note of the watcher on the other side of the roof up ahead. Approach her from the back and silently assassinate her. Loot the chest near the doorway around the corner and go inside. You can lure the brute by whistling, and the same applies for the other enemy up ahead. Indeed, if you look below you (after marking enemies with Eagle Vision), you can lure some enemies from the floor below you to inspect the whistle, including your target. This allows you to easily kill (and steal from) your target.
All you have to do afterwards is exit the factory via the roof and return to the marker.