Some 100% markers and game plan (if you don't have your own).

https://docs.google.com/spreadsheets/d/1V-_b38Zx04_jwPwyCTwuLYkBGXlb-SKnme1Thhs6KjY/edit#gid=1192273450

Requirement:

• At least Advanced player level (knows any% strats, can orientate in GTA IV world, manipulate time etc.)