Plot hole: It's brought up several times that the kind of music Cronauer is playing is not acceptable. Then why would such records of those songs be at the radio station in the first place?
Factual error: The jeep they are driving into the jungle that gets blown off the road is actually a civilian jeep, as evidenced by the headlight trim rings being mounted on the outside of the grill. Military jeeps have the lights behind the grill to facilitate "blackout" lighting.