Reality Factory

Hi, in my game I would like to be able to aim in a certain way. For example, have a third person player that can't shoot. Then if the player presses a certain key (Shift, for example) the game changes to a first person view with my player's top part of the body as a weapon actor, wich will be apparently aiming up and down depending on where you aim. Then when the player stops pressing the "Aiming button" to return to the third person view. I'm kind of basing this on Resident Evil 4.
Is this possible? Would I need a normal player or a scripted player?

oh thats like metal gear. well you can use this
SwitchView(int View);
and disable weapons etc. use a var like VIEW is false but when you switch to first person VIEW is true and you can use guns

Okay, thanks.