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After all the Submarine Parts are collected, the player must return to the Sonar Collections Dock and talk to Abigail to complete the mission. Abigail will thanks Michael for his help and start getting a little nervous when Michael ask some questions about a possible sabotage that caused the death of her husband. She will give $10 and a autographed photo of her ex-lover to Michael for his hard work and go away. After the cutscene ends the player will have the choice to either kill her or let her go. The player's decision will have no consequences to the game.
- Bring the submarine parts back to Abigail.
- Kill or spare Abigail's life.
- Abigail's car is a Asea, one of the rarest cars in the game, if the player wants to get him then he needs to wait until Abigail get in the car and then kill her shooting through the window. The car will be unlocked and the player will be able to take it to a garage.