I'm hoping to set up a series of victory conditions that would allow multiplayers' goals to lay obliquely rather then directly opposing.
Edit: So far I've worked up only a few extra VCs, and a 10 round limit, because the Battle Royale as written probably won't have a victor, since it runs until "all remaining players on the table have their victory conditions."
Gauge the Enemy! - You must successfully scan all surviving enemy ships. (Using the scanning rules from Recon Run)
Guardian Angel! - Pick one enemy ship of the lowest fielded priority level. You must prevent this ship's destruction for X rounds. (an inverted Assassination goal)
Extract Q-40!* - Fleet must extract as much Q-40 as possible from nearby asteroid fields. All ships or your fleet must perform at least X "All Stop and Pivot!" maneuvers within an asteroid field to shuttle enough Q-40 to fill it's cargo hold.
*requires an asteroid field.
The "X"s will have to be determined by priority level, etc to balance the game.