The fireing button works here in the conning tower as the pic shows,but thats about it as I don't think you could actually set up a hit from here in the Sim. Then again you could use the "W" key and set up the torp you wanted to fire,use the "end/home" keys on the sonar to get the bearing and then click the button for the distance, click the button to send to the TDC ( I think it works? )and
cross your fingers.

Bet some people will try it as it would not be an easy task. I was on the surface just goofing around when this pic was taken.