Night of the Cobra

"[Top-ranked sniper Kyle] Swanson is sent on a mission to track down two targets--one is the Cobra, the warlord who spent twenty years in prison after Swanson captured him and is now back in charge of the strong Somali underworld, vowing vengeance on the Marine; the other is the grandson of the schoolteacher who once saved his life, who has joined the Cobra's army of terror"--