I started 4 hours ago and just sank an Akita Maru with 3/6 torpedoes at 2,700 yds, with map contacts disabled. The target changed course after my crew announced that they had spotted her. I am using the OTC mod by CapnScurvy. During the attack run, I stopped the game to water plants on my deck, watered part of my lawn that looked thirsty, cut up a chicken, preppred it for frying, and cooked it along with two wings and two drumsticks in my brand, spankin new electric fryer. Plus, I cleaned the kitchen and managed to eat some of what I fried. I also paused the game once to review the OTC tutorial re establishing Aob.
Conclusion. Plan on spending a
lots of time if map contacts are disabled. Plus, you never are sure your set up is correct because there is no icon on the attack map to verify accuracy. But, it is a kick to chase and hit a target, as you get a chance to see all of your previous experience come to fruition.