It is possible to drive over these boxes and squeeze the SUV under the security gate, which will trigger the cinematic for the Boss fight against Sgt. When you get to the entrance for the loading bay, notice that it is blocked off by a line of large boxes. Squeeze the SUV into the underground area.
Get in the SUV and drive to the entrance of the underground area. It costs $2 million to unlock by purchasing the keys. When you enter Fortune Park, go to the red SUV. Use the following trick to easily kill Sgt. Shoot him with the rocket launcher and repeat until he has been defeated. When Leon appears from the left side, he will run into the wall. Exit the door of the maintenance room and stand in the left side corner. Enter the maintenance room in the rocks and create a rocket launcher. Get a metal pipe and ride the bike to the rock canyon. Get rockets and ride the bike to the alley with the maintenance room. Drive it to the fireworks store at Silver Strip. Get the motorbike from the front of the arena.
