After trippin' all 'round the world in the last four movies, Vietnam veteran and PTSD sufferer John Rambo is back again for a final fight in Rambo: Last Blood. The title comes full circle from the first film, First Blood, which arrived way back in 1982 as an adaptation of David Morrel's novel. Since then, the rough-and-tumble one-man army has waged one-sided wars against small town thugs, Soviet soldiers in Vietnam and Afghanistan, and brutal members of the Burmese Army, the Tatmadaw. Now, having returned to his Arizona family ranch in the last film, Rambo …