I JUST HAD A REALISATION ABOUT SUCKER PUNCH:
When her sister dies it wasn’t Baby that killed her, it couldn’t have been because you see the bullet she shoots hit the light and then the pipe, nowhere near her. The Step-Dad got into the room before Baby got there so he must have killed her first.
The thing about Baby’s fantasies is that they all reflect reality really closely, just amped up and the faces of the bad guys changed. It’s why they keep repeating that pose of her when she lands crouched on the ground. In the opening sequence that’s how she lands when she climbs out of the window, when her fight begins.
Later, in the Map fantasy, when the Wise-Man is telling them that the enemy have found a way to reanimate their dead he says “Don’t feel bad about killing them. They’re already dead.”