Catalyst is a main story mission in GTA San Andreas, given by Ryder.

It's the 12° GTA San Andreas mission in chronological order, and it takes place in Los Santos.

Carl and Ryder steal crates of cargo from a train.

Catalyst: Mission Objectives

  • Drive Ryder's Truck to the ammo train.
  • Shoot the Vagos robbing the train!
  • Protect the train from the Ballas!
  • Climb onto the back of the train.
  • Use the nearby pay 'n' spray to lose the cops.
  • Take the crates back to Grove street.

Catalyst: Mission Info

  • Mission Number 12
  • Mission Giver Map Blip IconRyderRyder
  • Mission Type Mandatory Mission
  • Location Ryder's House (Ganton); Pay 'n' Spray
  • State / Area Los Santos

Catalyst: Video Walkthrough

Original Game Walkthrough (PS2, Xbox, PC):

The Definitive Edition Remaster Walkthrough:

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