This has probably been discussed before, but I can't find the thread for it, and I thought with the advent of the Romulan faction it might have changed.
I have been trying to stay faithful to the Romulan fluff with my Romulan character (attached to the 7th ITS) by going all plasma weapons on my ships. I even finished the Romulan reputation to get all Romulan plasma weapons thinking that might help. But it hasn't. With the new Mirror Universe event happening I have finally thrown in the towel on Plasma.
In my first few runs of the Mirror event I went in with my Fleet Mogai with Romulan Plasma weapons. It felt like I was beating on the escorts with a Nurf bat.
The next few runs I switched to Fleet Plasma weapons, same feeling.
Finally I gave in and sucked all the credits from my other characters and changed over to Disruptor weapons but could only go mk xi blue for the disruptor induction coils (had 2 purples for the plasma infusers) nothing else changed on the Mogai. With this load out I'm taking out the squads of three escorts in about 15 seconds on my own (an engineer character).
Am I doing something wrong with the Plasma load outs or is STO set up to debuff Plasma weapons, even when that's the main weapon for the Romulan faction?