Where can i find tutorials for advanced users,Where Can i find tutorials for advanced user

Im searching a sites to people that can teach me how to create a really awesome game I start to working a FPS game but It to hard because I'm not animator. I want to know this thing: AI Advanced Animation like how to do when you shoot an enemy he fall to the ground and something like this where can i find Audio and How i add to my game How to add a Multiplayer How to create Sandbox or mmorpg free world

Thank you very much! :)