Ok, once in a while, if you are lucky (or unluky) enough then you'll get a Borg Prosthetic weapon....and I have to say that it is one of the most useless weapons in the game.
The damage from this weapon is appalling, and the concept of shield neutralizer is nothing more than getting aggro from AI on you. Seriously?
And if you use it then your team members may not like it as you are not doing anything at all.
Sure, cryptic/pwe decided to make it useless as it may have been use effectively in PvP, but could they use some brain and make it working against AI units? That shouldn't be that difficult.
How to really behave in online forums with developers
It's not a STF weapon, but it's a good weapon in any other situation. The main problem is that it's only a Mk X one. It would need an update since we can get Mk XII purple stuff from Nukara, and then it could be competitive.