Rewards: Pounds: 1500 (+75), EXP: 4000 (+100), Extra: Outdoorsman Outfit
Challenges: 1. Air assassinate a guard from a zipline. 2. Install the fuses without going 30m in altitude.
This memory takes place in Lambeth. Head to the icon. When you've met Alex and watched the scene, enter the carriage and drive to the marker next to the Big Ben. You'll now have to ascend it to the top, which isn't too hard with the rope launcher. Simply look up and press L1 / LB. The fuse box is on the platform with the bell. Now descend, but don't go down all the way; stay at least on the adjacent buildings connecting the towers. That way you'll stay just above 30 meters. Avoid (or kill) the guards patrolling here. Alternatively you can use the rope launcher and aim it at the other towers. At the next tower, drop down to install the fuse, then use the rope launcher to connect to a nearby spire. You'll even catch a Helix Glitch while moving towards it with the rope. Make your way to the last tower with the rope launcher again and install the final fuse. Exit the Big Ben area and return to the carriage.
The memory isn't over yet though. You'll have to loot 200 metal components from somewhere in order to get the Smoke Bomb upgrade. There will be two markers with two loot locations; both are required visits. At one of them, a Sniper is standing watch on a nearby building's roof. Use Eagle Vision to mark all enemies and move to the top of an other building and use the rope launcher to connect to a spot just beyond the sniper. This way you can Air Assassinate her. Kill the brute with a knife headshot and use the rope launcher to Air Assassinate the nearby thug. You can now defeat the remaining two thugs and loot the chest.
The last part of the mission essentially involves the same routine. Approach from the nearby building roofs, preferably kill a brute with a throwing knife and Air Assassinate one or two enemies, then finish the remaining ones. Loot the chest and dive into the menu to craft the Smoke Bomb Upgrade. You probably don't have a lot of supplies right now, but soon you'll want to upgrade some of your gear too. If you can upgrade your throwing knifes, do so to allow for a higher chance of killing enemies with a headshot. Return to Alex and Jacob to end the memory.