[Armistead]

Raven, I assume GFO still uses the stock campaign, at that distance its possible you were spotted before you dived and you're only noticing the behavior later thinking it's your scope.

One thing to remember about the AI, escort will come searching for you at your last known position or they will come directly to where torps are spawned.

The AI doesn't cheat, it follows parameters set by values. Simply, it passive sonar has a value for that time, it doesn't alter that to another setting.

The game can be frustrating until you learn all aspects of it, more so if you run harder mods like TMO. I use a version of TMO that I tweaked, because play long enough, even TMO becomes too easy.

One thing you need to do if you're learning is use the exterior cam a lot. Put it on nearby escorts and watch their behavior as you change speed, raise scopes, etc...Find out what you're doing and try something else.

More importantly, learn when to attack and when to wait. If water is shallow and calm during the day, bad time to attack. Try to attack when the values are in your favor, not in theirs. Sometimes it's best to shadow until you find a better advantage.

Even when you get good, often the goal is simply to get off your attack before spotted, knowing you're going to come under attack and it becomes a matter of proper evasion.

It takes time, when I played, I used a very hard AI, edited numerous escort to elite status and still found methods to beat the AI...With any game, once you understand the AI, you can find ways to beat it...if you don't make mistakes.

They're probably 100's of threads on this subject, so try the search function. Take time to read peoples patrol reports, such as paulhager, he gets detailed, but you can pick up good tips.