Here is my save before the last mission - killing Big Smoke. I'm posting my save in case someone wants to go through the last mission again. During the passage I did not use mods, cleo scripts, etc. for stable operation of the save - I passed it on a pure GTA SA.

Bonus!

I fulfilled all the requirements for passing GTA SA 100%! After completing the last story mission, the game will be completed 100%. All you have to do is capture Los Santos to the end and improve relations with some of the CJ girls.

CJ is prepared for the last mission, the number of zones to access the last task has been captured, weapons have been collected from killed gangs + fire resistance, since he completed 12 firefighter tasks to achieve 100%. Also captured hard-to-reach areas like a small piece near the Madd Dog mansion, the Jefferson Hotel and a small square in East Los Santos.