[X] Plan Ideas
I would agree with Andres110, we want to support whoever is most likely to win in any particular battle and/or the war as a whole.
If we had instant teleportation and could join the fight anywhere at anytime regardless of the shadow, we would ensure that either the nid's or the orks win completely by piece-meal victory. of course, we can't teleport and can't disengage so we must either get as close as possible to what just mentioned or some similar strategy that accomplishes similar.
If we had to choose between which to win, I would vote the orks as in the case that the nid's win locally, (killing us) then the good-guy galatic powers would have to deal with a galatic-tier nid invasion (they would ramp up hard before forces could be sent as we are the next largest local policy after their current target) AND galactic-tier orks as we already know the orks are everywhere, not just here.....and they would of course ramp up off eachother even MORE so.
but just orks would mean that the possablity of just a ork-invasion which we already know would head towards the eye since thats where the bigg-a fight is (the imperium no longer being the biggest thing around is quite handy for this).,.....for the most part at least.
basically, we need the nid's to lose more then we need the orks to. (and hope the other 5 invasion points are equally succesful in fighting off the nids)
of course, this is the worst case scenario and is also conditions for the quest to end....(us being dead I mean)