It sucks that you need more than two people because that makes finding games all the harder. Make the requirements for a DM game to start at least two people. Also 1. Integrate the game into the main game while keeping the ability to access it outside the main game. 2. Offer main game rewards for CQC kills or just playing, like credits, ship parts, and special ships that can only be acquired through CQC. I use to play Runescape, and this was how the Soul Wars and Castle Wars minigames kept their population -- rewards. 3. Allow the ability to fly your OWN ship in the arena. I know this will cause balance issues, but it should increase game population. This is how it's done in Star Trek Online, and sadly that game's PVP arena map is more populated than CQC despite its PVP mechanics being awful.