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Tornado Twins are the best source for tutorials. They started a new project and they are haveing user input for the game. Its biblical adventures, you can comment on their website, just search for their account on youtube its "Tornado Twins" and you should be on your way. They have complete tutorials for FPS, a worm shooter game, and they have a website where you can purchase packages and scripts and models and all that stuff for your Unity Games. Good luck! But if you have questions about it, you can still ask me because its quicker than e-mail and youtube stuff. Hope this helps!