When you are on the Tequilla Slamma level there's a superbike hidden in the grass outside the entrance to the house with the gates at he bottom left corner of the main highway (come of by the bridge near that corner).
If you use that bike to jump the jump and get the information it will say "The gates to destruction are open" jump back over and go over the bridge over the highway follow this road past the first place with gates, then keep going until you find another place with gates witch has a tank inside.
These gates will now open on your arrival and allow you to do the tank kill frenzy. Have a happy killingspree!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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