It is difficult at first but once you get the hang of it you can't get enough.
The graphics are so good I didn't believe it at first. The damage mideling is so good that when the side of the sub is bluwn off you can see the compartment inside! The game allows you to man each station on the sub from sonar to the conning tower to to torpedo control. At port on a campaign you can even outfit your sub the way you want it. ( I outfitted it with the biggest deck gun avaiable in addition to torpedoes.) You can even assign your crew to different stations and awrd them promotions. Note: I don't think you can make a member of your crew captain and just sit back while the ships go down. All in all it is a great game for the aspiring sub captain