I think it's only the Seawolf that they made so ridiculously quiet. Ranges can be tweaked a bit using the SSP, sea state, and bottom type. I've observed a very strong bottom bounce or surface chop effect (not sure which) with this mod that I never saw in stock DW. The acoustic environment matters much more than it used to...and there are some environments where you shouldn't be able to hear anything unless you run it over. That may be appropriate for some missions, but not for others. The mission designer has to figure it out.
In a surface duct, 688's and Akulas are detecting each other from 8-12 miles. That's very easy to work with, in fact, probably easier than the 15-20 mile detection ranges common in DW 1.01 hotfixed. Shorter detection ranges mean less time for the subs to crawl into range of each other (they will start closer, yet be moving the same speed), more room for sneaky tactical manuevering, less time waiting for torps in transit, and probably a more realistic experience. Provided that the NL's are tweaked a bit, I think missions made for this mod will be easier to make, more realistic, and more fun to play.
