Add what i told you to and your backstory should be good enough
Raymond Hackett was a 24 year old military man from kentucky who had served 8 years as a us marine just like his father who taught him always to put his country first. he was offered a job as a spy for the united states CIA collecting intelligence on gun runners in Chernarus. regrettably with fathers guidance he took the job leaving his wife and kids home while he went under deep cover for about 2 years and was not aloud to make contact to his wife and kids other than one phone call every 3 months.
on his way to making a much anticipated phone call to his family he was trapped in terrible traffic. after about ten minutes of sitting at a dead stop he heard screams of terror and got on top of his car to see what the problem was.He saw a horde of infected blocking the road and killing everyone. Ray jumped down and tried to pull his car out but it was traped by the cars of the people that fled. the screams were getting closer and closer so he had to think fast so he fled to the closest tree line while he watched the infected rip the civilians piece by piece. after the infected had moved on he went back to the road and looted the dead to find any kind of weapons, first aid, food or water. after he looted the dead he set of desperate to find a working phone to call home..
After about 2 hours of walking south according to the compass he found in one of the dead's cars he ran into two infected feeding on a dead woman. they stood up and ran at him and caught him off guard so he tripped and fell into the ground. luckily he fell next to a pretty thick branch and used it to bash the first infected head in. the second one on the other hand didn't go down so easily Ray took two scratches to the side and was bleeding pretty bad. he had to make a quick fix by ripping his sleeve and using it as a bandage. after a hour of the attack he finally managed to find a small town hopefully he can find some more survivors and a doctor to fix up his wounds.