You've done an admirable job, WB!
I know the "history geeks" may frown upon this but I have been enjoying this mod since it was released. Glad to see you've managed to lick those issues with the sensors.
I always did wish to make more use of the XXI than just two or three patrols before the war ends. You just can't learn the true capabilities of the XXI in that short span.
Now I can get on with a "proper" career with my "advanced prototype" as a kaleun in a ultra-super-duper-tippity-top-really secret-secret program to test the most advanced sub in the war. Sort of an "alternate history", sci-fi version of the super-weapons program that history has made famous.
Operation Schattenjäger commences anew! Beware, mine enemies!
So when do we get vertical launch tubes for V-4 rockets?
P.S.: Doing this same mod for the XXIII in NYGM (or GWX if the XXIII is ever done for it) would be great!