Load your save, transfer to Kiel, take command of the U-2513 (a real Type XXI), and show the Allies that the Battle of the Atlantic isn't over. Just remember to stay deep, stay quiet, and keep the snorkel above the waves.
The Type XXI is necessary for survival. The AI uses "Double-Click" Hedgehogs, advanced radar, and hunter-killer groups. In this environment: silent hunter 5 type xxi
While only features the Type VII U-boat in its stock campaign, you can bring the legendary "Elektroboot" into your game through the dedicated modding community at SUBSIM . Unlocking the Type XXI in SH5 Load your save, transfer to Kiel, take command