Normally you can't get back into the underground labs after the mission but can if you use blue hell. District, city or even a rooftop! Time for an upgrade! Grand Theft Auto: San Andreas - The Introduction. The base is a spoof of the real-life Area 51 in southern Nevada, but named after the 69 sexual position. GTA San Andreas - How to do the all of the Unique Stunt Jumps in The Desert and Las Venturas at the very beginning of the game (with the same vehicle), in locked areas of the game with a 4-Star Wanted Level (17 Stunt Jumps total) - Part 3 (of 3) The base is a spoof of the real-life Area 51 in southern Nevada, but named after the 69 sexual position. Next go to the south side of that building and use a jet pack to go through the entrance. In order to complete the mission the player must: 1. Steal, from a DEA officer, a dossier which has a compilation of the crooked cop's activities and scandals,, , The name is a reference to the sex position called, The jetpack is the most rapid means of infiltrating the base, but at the cost of being attacked and possibly, The underground building can be accessed by driving a.