So I was thinkin, pk medals are interesting, but WHO a player is killing is important too.

500 itani kills shows someone who probably leans very strongly to the Serco side.

So what if pk medals are based on Nation kills? with 25, 100, 500 increments from each one.

Killing UIT would give you Pirate Medals.
Killing Itani would give Serco medals, etc...

And each one would give a device or ship uniquely suited to fighting the group that you are clearly focusing on.

interesting