I wonder though. Why some private corporation is bossing around on Pandora instead of governmental or intergovernmental agencies?
All right, unobtainium is cool and valuable, but an alien biosphere is just as valuable and the biocomputers and neuro-interfaces are also quite promising, and taken together they are definitely more valuable than all unobtainium combined.
And yet there are only about 4-5 scientists on the planet and even those scientists are corporate employees.
And that corporation is very much NOT omnipotent like Weyland-Yutani for example. Humans don't have a lot of weaponry on Pandora, and nearly nothing in the way of heavy weapons - they had to manually (sic!) drop industrial explosives (sic!) from armed but obviously civilian transports (sic!) instead of doing proper aerial bombardment. And their combat helis don't look top-of-the-line either, they are rather some light auxilliary models. Also consider the total lack of land-based armor - those mecha look really stupid in combat roles, and I have a nagging suspicion that they are actually converted civilian models or, in the best-case scenario, an anti-insurgent weapon - something that can be used against savages or poorly armed civilians, but is destroyed instantly on the real battlefield.