In my opinion range is mostly useful on Tears of the desert, Ocean and Okinawa (B,C caps). LU works too if you keep them at 15km and gunbeat. Before I got LU I've been running reload for extra cap denial against DDs.
Build:
1 Main arm. Mod 1,
2 Fire ans flood %reduction
3 Dispersion (Its a gunboat, I can't stand stock dispersion)
4 Acceleration
5 Camo
6 LU ( used to be reload one, unlocked yesterday, fairly fun to play)
Captain:
PT
AR, Jack (used to run EL instead of Jack)
BFT, SI
AFT, CE
Yes, I run 6km AA DM with BFT and flag.(around 560 AA dps on 6km aura)... yes clueless CVs think it's a good idea to drop me thinking I have stock AA (bonus points for baiting them in chat)
And yes I'm a potato