October Army List Challenge

Overview.On a forested death world, not too dissimilar to Barbarus, lies an ancient cache. The Mechanicum suggest that it might be components of a STC. The Eldar think its a huge source of wraithbone. But the atmosphere of the planet is too thick and poisonous to be sure that the intelligence is correct. Your team must go to the surface in person and recover the cache. But others are bound to be