'Being a JTAC is the closest a soldier on the ground in the midst of battle can get to feeling like one of the gods - unleashing pure hellfire, death and destruction' - Duncan Falconer Meet Sergeant 'Bommer' Grahame, one of the deadliest soldiers on the battlefield. He's an elite army JTAC (Joint Terminal Attack Controller- pronounced 'jay-tack') - a specially trained warrior responsible for…