While I think that Halo has this comfortably in the bag on all fronts, I'd just like to point out the the Precursors could just employ the "kite" strategy from any MMO if they really felt like being dicks (which they seemingly always feel like being). The only difference is that instead of waiting for your DPS guys to run down whatever it is you're killing/kiting, the Precursors would just be kiting the SW universe until the end of time. Precursors go beyond time's end - instant victory.