At various parts of movie, the patch on Andrew's airman uniform changes from Andrew Jantz to Claws Jantz.
Andersen AFB is probably THE most strategic military base in the entire Pacific theater. It is a forward operating base for airlift, cargo, bomber, and fighter aircraft for all of the pacific area of operation and into the middle-east. It would be wildly unrealistic that it would ever be considered for closure under BRAC.
Outside General Hatcher's house after dinner, Erica addresses Lieutenant Colonel Blaine as "Lieutenant Colonel". A lieutenant colonel is addressed as "Colonel", and Erica should know this.
In the hangar where several of the characters are decorating a Christmas plant, there is a signpost with arrows pointing to various places in the world. One of them is Guam, but they are on Guam, so its arrow should be pointed straight down instead of to one side. Moreover, the arrows for Tokyo and the North Pole are pointed in opposite directions, but Tokyo is almost directly north of Guam so they arrows should point the same way.