Devs would like a concise list of things that are broken and not working currently, so here's a short list for PvP: Neutronic Torpedoes, Ionic Turbulence, Surgical Strikes (including Faeht firing through cloak), PartGen stacking and CrtH being boosted to absurd levels.
If there is anything history has taught us about Cryptic and PvP, it's that you can't expect... anything. All they said is that they could do a PvP Rep system and they might, but there are too many other things they said they will do and haven't.
Foundry: Yet Another Borg Mission
It's terrible but easy, and these Borg are way cooler than the mess STO and Voyager left us.
May not actually be "way" cooler or even "slightly" cooler.