MISSION UNLOCK SYSTEM

I want missions to unlock based on what you've done previously. Pretty standard stuff.

Problem: I want to have a complex unlocking system that not only could require multiple quests to unlock a new one, but also changes based on which CHOICES you made.

Solution: THINK REALLY HARD, CALL DAD.

Solution, for reals: Unlock points.

Each mission has a certain # of unlock points. When you complete prerequisite missions, it fires off a thing that subtracts an unlock point for each mission it affects.

When a mission's unlock points hits 0, then it appears.

GENIUS.