Can i use the stuff in the Bootcamp demo for my games without having to give credit to the people who made it? I’m not using the level just the assets (“Player,Models,Scripts,Sounds,Ect”).
Generally speaking, any assets in any project supplied by Unity for demonstration or tutorial purposes are public domain and can be used for anything you like. However, if you do find any copyright notices in such projects then you should pay attention to them 
thank you