How do you unlock warthog in twisted metal black?

Answer 1

In story mode go to the suburbs level and go to the carnival part there you see a gas can power up along the wall that will act as a ramp you drive off of that on to the building in front of it shoot the top of the building and you ll fall into the building where warthog is then shoot the panel and hes unlock

Answer 2

You must start in the Junkyard. Then, you mush shoot down the airplane that flies around the Junkyard. When it is shot down, it will make an entrance that will lead to Yellow Jacket (Yellow Jacket is at the end to the tunnel near the other exit). But, you must destroy the controls in the entrance (you'll find it in there). The only way you can destroy the controls is to use your special attack. Congratulations, you have unlocked Yellow Jacket.

Answer 3

You must complete every character's story (even the locked ones).