How can I make a camera view part?

I am making a cannon model for my game, and when you use it, I want your camera to view a certain location. (and other stuff, of course) I have been watching videos, but I can't get it to work. Any idea on how I can make a camera view part?

Note: My last attempt to post this was taken down for some reason. Please don't take this post down!

Follow this tutorial It will tell you pretty much everything you need!