in 1945, after America dropped the first atomic bombs on Japan, instead of fearing this tech, the world used it to their advantage creating tech more advanced than anyone had ever seen, they had advanced security systems, cars that could go months without refueling, lazer weapons, handheld cannons that could vaporize vehicles, ext. and with all that new tech came more future inventors who wanted more and came along simple robots that could do chores, cook, and take care of children, and by 1969 they already had the first smartphone and in 1970, a man whose name has been lost to time created a generator that ran on an artificial sun and the only fuel it needed was a small jolt of energy from a D-battery to start it with no more fuel needed after the initial start, with this HUGE breakthrough, humanity did away with their already advanced nuclear technology and came up with cars and trucks that never needed fuel at all because they ran on compact reactors that made small artificial sun's to power the car and all they needed to turn on was a crank of a hand crank that only needed one turn from a crank inside, new laser rifles that ran on the same kind of thing that just need a single turn of a crank every 12 hours, the cranks on the weapons were separate peices to keep it practical, so you keep a small crank with you, they also got other vehicles like planes and ships, they created holograms by 2001 and portable x-ray tablets that can see through walls, and much more, but in 2035 China attacked America attempting to completely take over but it backfired, it caused a third world war, in the process allies were lost, entire countries double crossed each other and it ended in everyone bombing eachother leaving only three countries, China which had taken over Japan, America who had taken over Canada, and Russia who had taken over south Korea and north Korea, the bombs destroyed most of everything else, hundreds of years later in 3045 the war continues, you are an American soldier on a mission to prepare a slain the Atlantic covering snow for a invasion by America and you have two teammates, nowadays anything from before the war is referred to be from the "old world" old world tech is rare but dangerous and because of its rarity most guns used nowadays use regular bullets big bombs are not used anymore