I am a new developer creating an island game with a couple of people. The island has different sections. The player has to do something to unlock the next area of the island. So my question is: Do I need to create each section of the island separately? Because I thought I could just create one terrain island with unlockable barriers between each section and open those barriers by even triggers. Note: I am creating the island assets and most of the models in 3Dmax.