Complete the indicated task to unlock the achievement.

Achievement	How to unlock
All The Way home	Complete the game with the ASMI Story-line "All the way home".
ASMI Completion - Fluffy Rabbit	Complete the game with the ASMI story-line "The Fluffy White rabbit".
Level The Battlefield	Find the Battle rifle and level the playing field.
Riggs Completion - Quick Exit	Complete the game with Riggs Story-line 1.
Riggs Completion - The Getaway	Complete the game with Riggs story-line 2.
Secret 1	Secret unlock 1.