Invasion on Coria Prime

In this game you have to manage a mining operation far away from Earth, on Coria Prime. 

But there is a catch:
The communication is real-time, but the bandwidth is low, so you can only access the most important information on an old computer, which communicates with the ship orbiting the planet, and can't really see what's exactly happening down there. 

A newly discovered alien species called the Tetranids attacked, destroying the first mining operation in the process, after which you have been assigned to the project. 

Will you be able to salvage what remains?
Finish the mining operation without casualties?
Exterminate the alien species?