From: US Midwest
Traditionally, a sub trying to enter a harbor is an almost suicidal mission, attempted by only the most daring commanders. The mouth of the harbor is a choke point, easily sealed with sub nets and patrolling sub-chasers. Beyond that you've got minefields, shallow water, patrolling aircraft, and shore batteries waiting to pound anything that surfaces to junk, just to name a few of the hazards. The commanders who managed to sneak into a harbor undetected were regarded as heroes for a reason, most would never even attempt it.
The concept of entire fleets of submarines waltzing into a harbor and destroying the ships there feels, well, unrealistic. Ships are easy to find in the harbor. If it was possible for submarines to attack them there, it would have been done over and over during the war. Instead, we find only a few isolated incidents, and never by more than one sub. There is a reason for this.
Ships that enter a harbor should be largely safe from sub attacks, but be more vulnerable to air attack, as they cannot maneuver.
< Message edited by Markiss -- 9/14/2020 8:31:05 PM >
Lock up your wife and children now,
It's time to wield the blade..