Heave-to for homicide. While in port, the USS Carolina is chosen for an urgent test of a new electronic firing system due to its shipshape efficiency record. That reputation will be stained -- in blood -- by a saboteur out to scuttle the trial, no matter how many swabbies and civilians must die. Reuniting Death on the Diamond's producer, director and comedy-relief pair of Nat Pendleton and Ted Healy, Murder in the Fleet is a lively and