Want to get more bonuses? Then read the hints below and jus follow my advice.
To unlock Stage 03B: Captive City: successfully complete Stage 05 or 06 before Stage 04
To unlock Stage 07C: Time Limit: successfully complete Stages 07, 09, 11, and 07C in that order
To unlock ADF-01 Falken: successfully complete SP Stage: Operation X
To unlock Fenrir: successfully omplete Campaign mode on the Ace difficulty setting
To unlock XFA-27: successfully complete Mission 03B
To unlock Stage 12C: Wild Card: successfully complete Stages 07, 08, 10, 09, and 12C in that order
To unlock SP Stage: Operation X: successfully complete all missions and mission branches
To unlock Ace mode: successfully complete Campaign mode on the Hard difficulty setting