This mission is the last involving Ricardo Diaz's drug empire. Therefore, this is going to be challenging.
Lance brings out two M4s from his trunk for use to take down Diaz. You will have to battle through several guards around the back of the mansion, heading for the back entrance to the mansion. Watch out for the guards, and make short work of them with your M4.
After heading through the back entrance, you will have to head up the spiral staircase, taking out the guards lining the flights of stairs. Head through the corridor, to begin the final showdown. You will have to deal with several more guards, and Diaz himself. He will take more bullets than your regular enemy, and he'll pack a punch with his SMG. Get the first shot to take him down, beginning the final act against Diaz. Tommy and Lance have got their revenge.
Mission Passed: $50,000
Diaz's Mansion is now your own, as the Vercetti Estate. At the bottom of the staircase, you find a room containing Health, Armor, a Shotgun and an M4. You also have a Maverick helicopter for use on the helipad at the top of the staircase. Right from the entrance is the lounge, with a Health Icon. Your save point is located in the office at the top of the main staircase. Make use of the weapons, Health, Armor and the chopper.