Complete sequence 4
Free 300 British PoW's
Complete every activity in a single location.
Hit 5 enemies with the berserk grenade (at the same time)
Harpoon a Narwhal
Survive a Reverse-Boarding
Counter 15 air surprise attacks
Complete all Native hills and Ice Caves
Complete an Outpost without getting detected
Complete all Assassin interceptions
Put 5 enemies to sleep with the sleep grenade (at the same time)
Destroy 100 Ice Bergs
Sink 10 ships in North Atlantic without dying while only the HUNTED cheat is active.
Sink 10 ships in North Atlantic without dying while only the ENDURANCE cheat is active.
Take over 10 large supply camps while only the VETERANS cheat is active.
Kill 30 guards without dying while only the ENDURANCE cheat is active.
Complete sequence 5
Complete sequence 6
Complete the final glitched memory.
Complete the game
Break through 500 meters of Ice Sheets
Complete sequence 1
All legendary Battles Completed
Complete sequence 2
Achieve 100% synchronization in all main missions
Capture All Gang HQs
Counter-Kill 30 Stalkers
Complete all renovations
Complete 35 Abstergo Challenges
Fully Upgrade the Morrigan
Loot 20 supply camps
Loot 20 ship convoys
Counter 20 smoke bombs successfully using a gas mask
Repair all computers in Abstergo Entertainment
Visit every location in the game
Get the Native Armour
Get the Templar Armour
Complete 17 story missions in the Naval Campaign
Collect all Animus fragments
Capture all Forts
Complete sequence 3
Capture all settlements