This story takes place in the old arma II map of dayZ

Jake joins the army at the wrong time just as he finishes basic training/sear school a war starts between the US and Russia when she charges into battle he is shot in the chest and he wakes up in a medical tent with other wounded solders…
Including a cyan mare with a several gunshot wounds in the chest as he was drifting back to sleep he was told they were going home or that's what they had planed…