The playing field between humans and unknown creatures that exist on other planets has been leveled. Using scientists and researchers, humans have not only located this planet with valuable resources on it but have also been able to create copies of important weapons and abilities that have made this war have even odds. You are not going to allow humans to come to your home world and take over so you need to use everything you have got to destroy them before they destroy you and everything you love. Be careful not to shoot your gun too fast. Watch the energy bar while in battle because if you completely use up your weapons energy it will stop shooting until it recharges and you cannot afford to lose those moments.