Garbage Tech

We are in the initial stages of making our maiden game HaVoK. It is a futuristic  FPS(First Person Shooter).

The Story

year 2250: after the impact of a mon sized asteroid on earth,th eearth was divide din two major continents.the surviving human population (estimated 2 billion) has colonized the "safe zones" the remaning earths landmass (roughly 2000 miles away) is unreachable due to frequent meteor showers. as all human powers were wiped out in da collision,the remaning humains have organized a leadership called the resilience,with its military branch resilience defence initiative(RDI).this is where out story begins...

year 2263: contact was lost with a squadron of resilience air patrol fighters off the coast of the human colony haste.their last transmission was

red leader: radar shows five .no. correction 6 airborne objects moving to our position.red one move into flanking position.i dont want any surprises.
red 1: affirmative red leader.aircraft seem of human origin.could it be another colony? somethin intel overlooked?
Red 4: i dont know approaching targeting range .switch to burners on 50% and go in slow.we arent looking for a fight
Red 1:3 more objects moving in behind us!
red 3 : crafts in firing position.
eavasive maneuvers!
red leader: red leader to home base be advised an invasion iszed flight group is heading to your position we cant hold them off much longer.prepare aerial defnses!....
red1: im taking hits!
..........
thats is where the transmission ended
shortly there after contact with haste outpost was also lost .RDI has deployed a rapid response team to the location.....
what happens next?what are these hostile powers? what becomes of the rapid response team? find out in HaVoK!