FPS aiming help

you no in medal of honour games wear you can like zoom in aim well i need help with that its an fps and i will be very gratefull so can you please help me

If what you want to do is just zoom in the view probably you best bet is to change the angle of the camera lens with an IPO, what should simulate zooming it, change it to a higher number to get a more zoomed view.

Thank you but i mean like when you press a button it goes to an animation or something thats what i mean like i need help with animation and stuff