GTA 3 Mission Loader.
With this script you can run any mission in GTA 3 and pass it.
For this game you need to press the M + L and with num 4 and 6 to select your desired number of missions and press num9 + num4, and then start the mission.
To use the script library will need to CLEO for GTA 3, which lies in the archive (by CLEO for GTA 3: Alien)
List of missions can be viewed here
Attention! Num Lock must be enabled!
Warning! Mission 0 -14 can not run!
The authors of the script: Lost_Forever and dim aka d88.
Demonstrative video:
Vice City and GTA 3 Mission Loader [YouTube]