[propbeanie]

Adding files directly from other mods, set-up as mini-mods (if you will), or a set of files with drastic edits, is exactly how we experimented with FotRSU. Environment mods affect the sensors, and is why we do not recommend noodling with them, unless you are ready to also noodle with sensors. You can really end up with some strange behavior if you're not careful, to where you might have super-uber sonar hunters that can't see an enemy BB 2500 yards off the port bow...

CapnScurvy was the one to actually "test" things by isolating the issue. If you want to find out about the visual sensors, you take out all other sensors involved in the test, such as blanking the sns file of a specific ship to only have the visual sensor. Set that ship standing still (not anchored) a given distance away from your submerged, standing sub, set to periscope depth, at whatever angle you want to test, whether bow-on, broadside, or whatever. Run the mission, and surface the sub. Do you get shot? Do they come after you? if they do, then they see you. Re-edit the mission. Either move the sub back, or rotate it, or whatever - but only one change at a time. Run the mission again, surface and see what happens. Lather rinse repeat... lol - Once you have the visual set, you could try night time, or dusk, or storming, or fog, or whatever. Run a TaFee by them, and see if they can see each other and try to "duke it out". You want a "balanced" response where you do not blind the enemy, yet you are able to "shadow" from a respectful distance. You also have to have "proper" equipment on the test subject, such as at least 5" guns for medium range visual, and AA guns for in-close, etc. DD / DE are the easiest to test (usually), because they will come after you. Not so with a lot of other "enemy" targets - some run away, some don't care.

After all of that, then you move to doing the radar or whatever, the same way. Hydrophone and sonar tests can get wonky, and very detailed, because now you want to be moving with your sub, and at various depths, to find the "detection" range, which usually means using the external camera to "see" when an un-anchored escort ship starts to move to attack you. You want to test that from various angles to get an idea of the "bubble" that they can "hear" you in. You should be able to come up from behind rather close, but not so from the front, etc.

A "controlled" environment is the easiest / quickest way to work, so we are usually building the test missions in the South Pacific, no where near a possible response from anything, or you "blank" the campaign, and do not load anything other than the Single Mission you are testing with. If you are testing for response (air, ship, whatever), then put that in the mission yourself. Very tedious, boring stuff...