(damage, personal credits, sunk ships, sinking a certain mod, etc)
You could make it more interesting by choosing a certain ship type that was targeted that week such as L2's, Kaisers, APA, whatever. Make it a specific number of damage or personal. Play a version of "hot or cold" where you select a number of attack/personal, then list a board of numbers and strike them out as the screen shots come in. Honestly it would be fun to just see what the GMs and MODs could take and run with it so these are some very baseline and off the cuff ideas. I could think of some more if there's a solid intrest in this, though especially if it's something that we decded to do long term. Think of it as a weekly quest or goal like other MMO's do (not breaking any rules here right?), and our 2x exp win a daily if that helps.