I know better than to waste my time correcting an admin intent on playing wikilawyer games, but the 'cowardly Italian' tag is EXTREMELY well attested. Eg, Dr Rachel Hewitt (Wolfson College, Oxford), in the prologue to her 'Map of a Nation' book, states that the YP 'fled [Culloden], ignominiously, with the cry 'Run, you cowardly Italian!' ringing in his ears,'. John Prebble, in his 'Culloden', and others, attribute the cry specifically to Lord Elcho.