Memory 01: 01 The Darkest Hour

Proceed out of the starting room and up the stairs. Three Templar agents are in a room below.

Interact with the glowing generator near the doorway to turn off the lights in the room below.

As two Templars investigate, perform a corner assassination on the first.

Kill the second Templar before entering the room below to deal with the final enemy.

This triggers a scene.

You will be set loose in a new open-world area of London circa 1916. Three objective markers will appear on the map for the locations of Templar agents with information.

Radio Intel 1: Located on a dock west of the Tower Bridge's southern end, beneath the central crane. Enemies include 6-7 Soldiers, with three standing next to the target.

To clear enemies: Rope Launch to the sniper platform on the eastern crane, kill the enemy, and use dynamite crates to eliminate groups of soldiers and the target. Alternatively, disable a generator on the water side of the dock to lure enemies.

Loot the information from the target's corpse.

Radio Intel 2: Located on a stationary boat west of the southernmost part of the Tower Bridge. The boat has the target and six additional Soldiers.

To approach: Rope Launch to a wooden pole near the front of the boat. Wait for the target to patrol east, then use a throwing knife to headshot the guard near the prisoners. Drop down or climb onto the deck. When the target returns, assassinate him or use a throwing knife.

Loot the second set of plans from the target's body.

Radio Intel 3: Located beneath the road leading onto the Tower Bridge on the southern side of the river. The target patrols with two Soldiers.

To approach: Use the right-hand stairs to find a generator and a fire barrel. Use the generator to attract guards, then hit the fire barrel with a hallucinogenic dart when they are in range. A hay stack is available along the patrol route, and Rooks can be recruited from the bridge above.

Loot the intel from the target to continue.

Once all three pieces of intel are collected, Lydia will reveal the Radio's location. Your objective marker will update to the northern tower of the Tower Bridge. Avoid searchlights to prevent sniper fire.

Kill the two Templars on the supports linking the bridges before proceeding to the tower.

Kill the four Templars inside the tower to complete the objective. Options include dropping down an open hatch or approaching from the outside on the northern side.