So I may just be doing something wrong, but as far as I can see the final chapter of the Skeezik alliance campaign seems to be bugged? I take out the hunters, sand dragon etc. leaving only Son Of Vandrix on the map. But he is invincible, the shrine is invincible and nothing else happens... I tried this twice, the second time I ended turns up to turn 110... nothing. I don't know if I'm missing anything and can't progress along the launchpad... can anyone advise?