Good question to start. As beginning can use Third Person camera
Now we have third person camera, but without control.
The code for this camera type in the GetCameraSettings method of Component_GameMode.cs.
"else if( UseBuiltInCamera.Value == BuiltInCameraEnum.ThirdPerson )"
You can override camera management by GetCameraSettingsEvent.
Technically need make event handler in the editor. Select Game Mode object, go to Settings window, open Events tab. There you can make event handler for GetCameraSettingsEvent.
But of course is good to have example scene in the SDK) If you know C#, you can make event handler on C# script.