I’m trying to make a third person shooter like ShadowGun. Not the whole game, just the camera and aiming. I can’t seem to get it right. I think I need to do something with quaternions, but I’m not sure how to do so. Does anyone have any ideas? I’m about to literally blow a brain cell!!!
I’d like some gameplay like this: http://www.youtube.com/watch?v=YhA0cbu1BxI
You aren’t supposed to work with quaternions, thats a common mistake people make. Quaternions are engine-level stuff designed to prevent gimble lock and other eular issues. Just convert from and to eular when submitting a quaternion to the transform.
Download the third person shooter project example from the resources section, it’s pretty much exactly what you’re looking for. Dissect the project, if you don’t understand it; go back and start smaller, and keep learning more about programming and Unity until you do.
It’s OK to ask us in the forum “stupid questions” as there are no stupid questions. Geeks here like me and everyone else (to be honest) love to try and help beginners get to grips with unity.
The only stupid question is “Can you code it for me?” 
Note: I didn’t mean for my previous post to sound condescending. If you download the Third Person Shooter example and are confused about anything therein, I’d be happy to help.
Thanks for the responses. I’m decifiering the 3rd person shooter script now.