Open Ubisoft Connect , go to Settings > General , and untick "Enable cloud save synchronization" . This prevents the launcher from overwriting your new file with your old progress from the cloud.

You can find and download Assassin's Creed 3 save game files for Sequence 4

C:\Users\[Username]\AppData\Roaming\Ubisoft\Assassin's Creed 3\Saved Games 2. Backup and Replace

: The default location depends on your game version:

The first three sequences of Assassin's Creed 3 serve as an extended tutorial and prologue featuring Haytham Kenway. While the story is compelling, many returning players find it slow. By starting at , you: