Sarge leaves the ranch in a dress, and arrives in uniform.
When Larry, Bill, and Everett Were Heading For Fallujah Iraq They Suddenly Found Themselves In Northern Mexico. You Can Not Reach Iraq In A C-130 By Way Of Mexico.
'Larry the Cable Guy' is wearing his Christian name on his chest lapel - he should be wearing his surname. However, he has no surname in the movie, he is just Larry, so there couldn't be a surname.
Perhaps intentional: The aircraft they are dropped out of is a prop driven C130- But when the pilots are throttling up and down during the emergency, you hear the turbine whine of a jet aircraft.
When they show the HMMWV as they leave the landing zone, someone has taped a US flag to the left front side of the HMMWV. The US Flag always goes to it's marching right, so it should have been on the right front side. Any military personal would know how to display a flag correctly.