There are some situations that the standard camera movement has difficulties. Climbing entering some structures, passing thru tunnels etc
If it were possible to change the relative position and ordination of camera to the character it would be possible to overcome many problems.
There are also times when I can envision it would be advantages to slip into 1st person temporarily ( I noticed at the moment the camera view can slip inside the characters head giving one a rather disconcerting view of eyebrows etc)
Please forgive me if these options are already available I have only just started exploring GameGuru.