Untitled Shooting Game(USG)

In 2055 ww3 also known as world war 3 started are you ready to unravel why they are fighting or you fight too. No one I mean no. One has figured out why it started but 5 years after ''the incident of the war'' they still didn't know how the war started and its still going on and then one day a alien crashed in the middle of the war and the alien said:''hello I'm from planet ertha'' witch is a unknown planet many people say that its a scrambled up version of the word ''earth'' but we still don't know.