Default or Custom character controller

nuvied

I want to use default unity character controller in AC(One that comes up with unity "First person controller") can anyone guide me?

I did something working but main problem is hotspot and trigger not detecting.

ChrisIceBox

AC relies on it's own First Person control system - you can't use the Unity one, because it's not compatible with things like Triggers.  You can read a tutorial on setting up FPS control here.
 
AC also supports the use of the UFPS asset, which is an excellent 3rd party controller.  A tutorial for UFPS integration can be found here.