I have two phaser arrays Mk IV which are rare (Thanks PvP) a Quantum Torpedo Launcher MK IV with 20% severity. Thats just for the front. The Rear is a Photon Torpedo Mk IV.

Seriously, just do PvP. The medals you get will get you some sweet weapons and it doesn't cost you like a billion credits from people from the exchange.

In PvP as Fed, if you lose you get about 20-25 Medals of Bravery (Lt. Comm), avg. 100 skillpoints, and around 2200 credits.

If you win its slightly more than that but not much, even if you had a hand in every kill.

Some people farm this though, and sell what they get on the exchange. Just do PvP. I just say that because I hate waiting times for PvP. If I queue queue, I want to pew pew real fast.