Incorrectly regarded as goofs: The trainees are part of a Combined Reconnaissance Team (CRT); hence, the training is not identical to Navy SEAL training, as it combines elements from all the branches.
Continuity: When the submarine on which the SEALs sail dives, it is shown as an Ohio class missile sub. When it is submerged, it turns into some other sub. Before the team surfaces, it has switched back to an Ohio.
Continuity: When the first trainees are jumping out of the helicopter into the water for the S.E.R.E. training course, the sun is shown just rising over the horizon. However, the shadow cast by the helicopter's tail (viewed from inside the helicopter) indicates that the sun is instantly much higher.
Factual errors: When Master Chief Urgayle is sitting with his sniper rifle and watching Cortez helping Jordan over the wall, the angle is wrong. When Cortez drops Jordan, Urgayle sees this from O'Neil's vantage point.
Continuity: Near the end, when the helicopters are flying in to support the soldiers, it is possible to see in at least one shot that the Cobra helicopter's rocket pods are empty (the sun shines through the tubes from the back). Later, the same Cobra is shown firing its rockets, even though this would not be possible.
Miscellaneous: At the beginning of the first course it is stated "12 minutes or less" is what is need to pass that part of the training. Yet Cortez finishes in 13:10 and Jordan finishes after him. Even with a 30 second deduction for all females in training, still doesn't put her under the 12 minutes she needs to pass the course.
Factual errors: Trainees that pass HellWeek are issued brown T-Shirts to make it clear that they now passed it. In the newspaper photo, O'Neill and the other still wear white-shirts, which shows that they haven't completed Hellweek.
Errors in geography: In the briefing for the Libya landing, the coast is shown as southern (sea south of the land). Libya has no southern coast, the entire country lying South of the Med. The maps could conceivably have been drawn "South up" but this is against all military (and geographical) convention and unlikely in the extreme.