they play pretty simple: use point-blank torpedos with reload + kin-crewed buffed macros to focus fire ships down (the 2nd upgrade depends on the other fleet, but AP ammo is always good). you probably want the torpedo battleship to be more crit-resistant (I have not done a price analysis after the last patch). use all of your ships for focus firing (including escorts) and against most fleets take either stasis bomb or dark matter cannon to delay concentrated focus-firing from the other fleet (imo stasis bomb is a bit better, because it is an effective protection against macros) and the 75 front armor skill to have more sustain until your second torpedos salvo is ready (btw, at the moment it works for ramming too).
use your stealth mostly to get a good initial engagement, don't try to retreat to restealth. most of the time you will only suffer damage without dealing any. morale loss is a bigger problem for you than receiving crits, don't waste your order on emergency repair.
@brohanbroski try MWJ exorcist and 4 dictators. imo if you go with carriers, go all-in on hangars. it gives you a lot of extra pressure if you are chasing and it should help against the fleet builds vanilla navy struggles with (nids, tau, lance and slaughter chaos, eldar and I suppose SM (maybe I have not seen any competent SM yet)). the ordnance often forces a boost against eldar, which you can exploit by MWJ into the boost direction. I do that all the time to punish torpedo runs with necrons.
@BrohanBroski that would be interesting to read.
I am a bit surprised though, because you wrote before "IN does less than nothing to you outside of rams and torps." if you run with dictators, you have between 10-12 hangars, depending on how much escorts you want. that is a not unimportant amount of potential hull and troop damage.