Loose Cannon

Loose Cannon is a secondary memory in Assassin's Creed Brotherhood.

Description
Upon discovering its location, Ezio proceeded to go after the Naval Cannon, which was being kept on the docks of Naples. Discovering that the fortified dry dock and surrounding area were heavily guarded by the Borgia, he began his search for the engineer.

Hunt for the machine
While scouting the outer docks, Ezio overheard a guard instructing his comrades that only a man known as Eduardo was allowed to examine the mechanism they were guarding, and make any final improvements.

Tracking down and seizing the engineer by the collar, the Assassin demanded the plans for the mechanism, however, Eduardo quickly confirmed that Ezio was the Assassin, and offered his aid in destroying the machine. Ezio thanked him, and allowed him to 'escort' Ezio to the plans by gondola.

The Water Tunnels
Ezio followed Eduardo through a series of narrow canals, traversing the beams overhead in order to avoid confronting guards. After opening several gates for the engineer, Eduardo soon departed after leading the Assassin to the entrance to an old store room, through which he could reach the dry dock.

Assassinating the nearby guards, Ezio finally reached the room where the naval cannon was being kept, where he overheard several guards noting that the cannon was fully operational. Ezio immediately charged forward, directly assaulting the soldiers and dispatching them without effort. After burning the plans as usual, he then flooded the dry dock in order to take the naval cannon into open waters.

Sea of Chaos
Catching sight of several Borgia war ships moored in the harbor, the Assassin proceeded to use the cannon to set fire to their sails, dodging the retaliating arrows and cannonballs. After bringing down each ship, he finally turned and pointed the mounted cannon down towards the center of the gondola. Muttering for Leonardo's forgiveness, he fired the cannon into itself and dived into the sea before it exploded.