The Border Worlds faction is getting some nice upgrades to their torpedo-carrying fighters in the WC4 Homeworld mod. L.I.F. has just finished importing DefianceIndustries' Vindicator and Avenger into the Remastered engine. Either craft can do some serious damage to Confed, Kilrathi and Black Lance capships, and the Stormfires that will also be added to their arsenal will chew up fighters too (that aren't nimble enough to get away!). Try the mod out for yourself here.
The Vindicator is a medium-fighter armed with anti-ship torpedoes, a pair of laser and tachyon guns. Despite is relatively light anti-fighter armament, it represents a clear threat for frigates and smaller capital ships and should not be underestimated.
The Avenger torpedo bomber is a large, unwieldy craft reminiscent of a shuttle, however packed with as many anti-ship torpedoes as a longbow, and is reported to be a tough enemy to shoot down, especially with its dangerous rear mass driver turret. Prioritize it as you would a squadron of Paktahn threatening the Admiral's latest toy.