I have a tutorial for a game in unity as a seperate scene and its own option on the main menu. so how do I make it so that once the player hits the end of the tutorial it brings the player to the main level and marks the tutorial done as a quest? And then if the player choses to not do the tutorial and go straight to the main level how do I make it so that the tutorial quest doesnt appear or automatically marks as complete and then how do I make other quests like kill an enemy and make it complete when the player kills the enemy. the game code is in C#