TAGs are ridiculously useful in Hell's Kitchen in multi too.
For TvT there's a couple of loadouts that are valid, anything else is sub-optimal/borderline terrible.
PromS/Kayser (*Assumes light to mid-fighter, though can be used in heavier fighters).
PromS/MorningS (*Assumes mid to heavy fighter).
Tempest are the only valid multi secondary - Rockeyes can occasionally be useful for dumping into someone's path to disarm them (*herc mk2, ares, erinyes).
Aspect seeking missiles are beyond useless against skilled pilots.
Subach isn't worth the fire control bank/energy of it's shots, if you have energy problems, shoot less unless you're sure you'll hit, PromS/Kay = THE Squadwar combo.
Morning star is more of a tactical combo used to pin people to hit them with missiles (*less killed pilots will use this to get aspect seekers off, more skilled pilots will obliterate the poor victim with tempest).
Maxim gets used against capships but is more or less useless elsewhere, but honestly if you're gonna take a subach just to link it up to a PromS or Kayser, just leave the bank empty and fire less. It's more efficient.