Board Thread:Questions and Answers/@comment-25700632-20141116213604/@comment-25816927-20141208015657

You get matched up in PvP depending on your ranking points for the given month. These points are dependent on your activity, such as going on sorties, etc. So regardless of HQ level, if they rack up points at a similar rate as you are, you will likely face them in PvP. Grinding 1-5 gives lots of points, especially if you defeat the boss node. Also about these points, they update twice along with PvP roster change and they reset every month. You still retain your accumulated HQ points/level. In any case, it's still a good idea to go against someone in PvP as they offer lots of ship exp. Just be mindful of the levels of the opponent's first two ships to see if they're worth the effort. Higher = better exp gain.