A new SH5 devotee needs to contend with a significant learning curve, and don't expect the game to help you out much, the initial campaign mission teaches nothing more than how to press the fire button, and not much beyond that. Want to plot a firing solution? Or work that Hydrophone? Then good luck. Your best bet is to hit the forums for hints and advice from those that can tell a type VII A U-boat from a type VII C.