First look at SCOPE Trilogy

About SCOPE U-boot, from BoardGameGeek:

The Battle of the Atlantic confronted the convoys, essential to the Allied war effort in Europe, against the wolf packs of Admiral Karl Dönitz. It would result in thousands of ships sunk and millions of tons of material that would not be used in World War II on the one hand, and on the other, hundreds of U-boats sunk by the escorts. In SCOPE U-boot two players recreate the tension of the Battle of the Atlantic. The German player will try to sink the merchant ships crossing the sector while performing a deadly dance of stealth and death with the escorts trying to sink his subs. SCOPE U-boot is a stand-alone instalment of the SCOPE system, being very different from its predecessor – the only similarities being its grid of cards forming the board and the many strategic possibilities it offers! In SCOPE Stalingrad we tried to guess where the rival sniper was, but in U-Boot the German player will be the one hidden under the surface and the Allied player will have to find him and avoid being sunk. Ships move on the surface, although freighters move more slowly. The submarine gives away its position when it fires a torpedo, but beware! You will have to choose as an ally whether you prefer your freighters to dodge it or move your destroyer to the area where the torpedo came from and sink your opponent. SCOPE U-boot has many game modes, with different levels of game complexity and duration. Select the scenario, create the card grid and jump right into the action! -description from the publisher