User blog comment:FlammeumDraco333/Tales From the Not so Blocky Seas/@comment-24642271-20160228010446/@comment-26778822-20160228035734

Soviet submarine builds were only great during the Cold War and today, not in WWII. Funny thing is, the highest level US sub was actually very unsuccessful IRL. Failed to meet its requirements for speed(it was supposed to be a fleet sub) and needed up being decommissioned, reactivated in WWII, turned into a cargo sub, and then scrapped.