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Catalinas Mission
Grand Theft Auto III — The Definitive Edition

Catalinas Mission

Follow our detailed walkthrough for the 'The Exchange' mission in Grand Theft Auto III — The Definitive Edition. Learn how to defeat Catalina and save Maria.

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Follow our detailed walkthrough for the 'The Exchange' mission in Grand Theft Auto III — The Definitive Edition. Learn how to defeat Catalina and save Maria.

Walkthrough
  1. 1
    After the mission starts and the cut-scene ends, immediately run to the back of the mansion and enter the garage to find Body Armor.
  2. 2
    Get into a Cartel Cruiser, run over the guards, and exit through the front gate.
  3. 3
    Notice the helicopter flying towards Cochrane Dam.
  4. 4
    Go over the small wall near the light post and head to your safe-house.
  5. 5
    If you have a Rocket Launcher and Sniper Rifle ammo, grab them.
  6. 6
    If not, take a fast car to Phil's and purchase a Rocket Launcher. Consider buying multiple Rocket Launchers as they regenerate faster than Sniper Rifles.
  7. 7
    Head to the Cochrane Dam entrance. From the mansion, go counter-clockwise to find a dirt path.
  8. 8
    Outside the gate, use your Rocket Launcher on the nearby Cartel Cruisers.
  9. 9
    Drive forward to the Sniper Rifle icon near the dam's base.
  10. 10
    Rocket the two Cartel Cruisers in front of you.
  11. 11
    Use the Sniper Rifle or Rocket Launcher on the Colombians nearby, including those on the side staircases.
  12. 12
    Proceed to the first set of container crates and Rocket the Barracks OL. Snipe any remaining Colombians.
  13. 13
    Move to the next set of container crates past the Barracks OL. Rocket the next Barracks OLs and snipe any remaining guards.
  14. 14
    Before moving forward, switch to the Rocket Launcher.
  15. 15
    Past the second grouping of container crates, a cut-scene will play showing Catalina entering a helicopter.
  16. 16
    The helicopter will launch rockets at you. Turn around and return to the Dam entrance.
  17. 17
    Turn west and stop at the sharp turn to gain a vantage point.
  18. 18
    As the helicopter moves towards you in its circular pattern, launch Rockets at it to destroy it.
  19. 19
    Proceed to the building at the end of the Dam path.
  20. 20
    Go up the next-to-last staircase (the one next to the wall, not the metal one).
  21. 21
    Use your Sniper Rifle to eliminate the guards around Maria. (If you need more ammunition, you can go to the Newport Ammu-Nation).
  22. 22
    Go up the stairs to Maria to trigger the end cut-scene.
Tips
  • It is recommended to have a Rocket Launcher and plenty of ammunition for it.
  • Consider buying multiple Rocket Launchers from Phil's if you don't have them, as they regenerate faster.
  • When fighting Catalina's helicopter, find a good vantage point at the sharp turn near the Dam entrance.
  • Prioritize using the Rocket Launcher against vehicles and larger groups of enemies.
  • Use the Sniper Rifle for precise shots on distant enemies, especially those on staircases.
Congratulations! You have completed the mission. Catalina dies, and Maria is saved.

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