All the world depends on just one particular system. You are a soldier who resists this system. There are some regions that have critical importance for humanity. Take them out of the system and occupy.

There are three groups with different characterics. Choose the suitable one for you.

Complete all of the missions. Destroy the invader creaters that you encountered during missions. Make reports about the events and items. Find out what is happened in this area by examining the reports.

Be careful in mined areas. Scan for mines and annihilate them
Guardians of dark forces who aim to seize the system may arrive to defend themselves. Fight with the system guardians!
Find or produce first aid kit to use in case of injury. You may also need it for your team.
The importans regions of the system has been guarded with locked gates. Find or produce bombs and bullets in order to pass from the gates.