Get in any land or air vehicle and drive or fly to the abandoned air field in the region of Las Venturas. To the south from here, there is a little area that is a "no fly zone". If flown over, a mysterious five star wanted level will appear. This is because the area is a government agency secret base that holds several heavy and speedy army vehicles. You can also find this area in the middle part of the region of Las Venturas on the map included with the game. Use the following trick to enter Area 69 without the law on you. Find Barbara (a girl you can date) in a town north of San Fierro and Tierra Robada. Start dating her. After you get your dating percent up to 100%, you will receive a police uniform. Go to a safe house and put it on. Get in a police car or Ranger police SUV (recommended). You can now drive into the base and get several things, such as different types of guns. You can also get a chopper called the Cargobob. You can also get Patriots, Rhinos, and Hydra fighter jets.