When arriving at the airport, fake Marine Lance Corporal Kurtz is wearing an Army Combat Infantryman Badge on his left chest above his ribbons. In his next scene arriving at the Ilikai hotel, the CIB is on his right chest above his nameplate.
Marine Lance Corporal Kurtz wears the Combat Infantryman Badge, which is awarded only by the U.S. Army.
In the scenes at the Red Temple, one of WoFat's cohorts is shot close by. There is no audible sound of a shot. That sound would be easily heard in that secluded location.
When Lieutenant Henono was introduced, they said he was from "Army Intelligence" -- but he was wearing Infantry branch (crossed rifles) insignia. The Military Intelligence insignia looks totally different. If he were an intelligence officer, that's what he would have had on his uniform.
The HPD Bell 47G helicopter started with the registration number N1404W and a few seconds later it was N8544F.