Manny Diaz was a child of two Cuban immigrants who each separately came to America, with their families, in search for a better life. In Miami, where Manny was born, he had a good and simple life growing up, and due to his parents successful and growing business his life was also comfortable financially, being able to go to a private school and being able to have most things that he sought after. Once he was done with high school his parents pressured him to attend a college, wanting their son to get the education that they never could and even offering to pay for the education fully themselves. After some time Manny finally agreed to go to college, but flat out refused his parents offer of paying the bills knowing that it would be far too much for them, and could not live with the idea of his parents becoming penniless by spending all their money on his college bills. So not being able to pay for it himself either and with his mother's total disapproval, Manny joined the military in order to pay for his college education. After sometime he ended up enjoying the military life more then he thought he would and officially made it his career, again with his mother's disapproval.
While in the military, specifically the marines, Manny bonded deeply with his unit and felt a great sense of accomplishment when it came to serving his country and protecting the American dream which he held close to his heart considering that his parents are prefect examples of that dream.
Today, Manny is still serving and currently holds the rank of Lance Corporal and with the disease to the east Manny is one of the few who has been assigned to the international UN Peacekeeping force being sent to Chernarus in order to protect a medical team that wishes to find a cure.