Hello TDW
So tried it in the wolfpacks scenarios (with a range of 999 km in sh5.exe, and a AI ships and subs from a range of 900 km of my sub) : work like a charm
I tried range at about 4000 km and above, seems there is a limitation
of maximum range, as i can't make them work at this distance (perhaps more than 1000 km as i didn't tried this range)
I understood anyway that this kind of range can't be used in a campaign !
(or you need to remove at least all port traffic !)