pausing the game helps for IDing contacts,and working with tools on the nav/attack maps. unless you're going for total realism and simulation. back in the day,they didnt have the luxury of hitting backspace,heh.
entering firing solution data can be done from the oberservation 'scope, tdc (attack 'scope),the tbd (surfaced),or uzo (uboat,again surfaced),and the attack map. (not to be confused with the navigational map)
hope this helps,or you already figured it out.
