Earth Protect Squad: TPS Game

This is the beginning of the invasion.
We do not know where they came from - from the depths of space or from another dimension.
All we know is that they did not come in peace. 
Huge extraterrestrial spaceships have just appeared in Earth's orbit.
First, they destroyed all large military bases, then they began to look for something in different parts of the planet.
They used war machines and strange mutant creatures to attack us.
Then it got worse - they began to turn our people into their weapons - remotely controlled brainless zombies.
The Earth Protect Squad is our last hope. A small military organization was created to counter the alien threat.
We have everything to fight - highly skilled soldiers, many modern weapons and the latest technology such as war drones and force fields in our arsenal.
We have an armory to customize our weapons and gain a tactical advantage - you can easily change your scope, barrel mount, or even ammo type before a mission.
We need to find out what they are looking for.
We need to learn how to fight them and defend our home.