And here it is... the AimView mutator...

While aimed and holding your AltFire button/key the view will zoom in on your sights. 
As long as you control your breathing the view will stay zoomed in. At the time the 
controlled breathing stops, be it due to firing your weapon, movement, leaning while 
not prone or getting hit, the zoom will shift back.

You can setup new zoom values within the ini file manually and even directly within the 
game by using a set command. Simply test it out offline and then use the following on 
the commandline

set av_item 0.5 true

to set the zoom to use 50% of the standard FOV instead of the default value of 75% (0.75). 
This will be saved directly after entering this string. To bring it back to default use 
"set av_item 0.75 true" of course. Configure it as you wish this way.

Have fun with it,

Beppo

Norbert Bogenrieder aka Beppo     Lead Programmer
beppo@sentrystudios.net           Sentry Studios - Infiltration
nb_beppo@gmx.net                  http://www.sentrystudios.net
             http://infiltration.sentrystudios.net