Fast paced, first person strategy game

Unvanquished is a real-time strategy game played as a first-person shooter where evolving aliens and heavily armed humans fight for their survival.
Become a marine, handle your big weapon and dress that impressive exoskeleton to save the human race like a boss.
Or if you prefer, be a monstrous beast and save those cute grangers from those two-legged invaders who only know how to turn beautiful organic equilibrium into lifeless machines and dead concreted worlds.