You're with an Assassin in nowdays, and Your objective is to eliminate an FBI agent Tom Drake, and a Captain: Cpt. Kelj . You'll get weapons and theres n armor hidden somewhere too. You will need a lot of talent(or a good rifle) to acomplish this mission. There's a twist in the game too. I wont tell it to U go ahead and discover it Urself.

Note: I made every gun in the mission become twin pistol[2 pistol(minigun too)]. U can do it with the GTA SA Ultimate Editor.
Note2: Still have the 0123456... error