I just looked it up - 5 miles in 20 minutes would be close to if not THE world record for a 5 mile run.
Did anyone actually READ the article?
“8. The Special Services Group, SSG, in Pakistan is better known in the country as the “Black Storks” because of the commandos’ unique headgear. Training reportedly includes a 36-mile march in 12 hours and a five-mile run in 50 minutes in full gear.”
That’s FIFTY minutes, not twenty. Ten minutes per mile. Still a pretty good feat in full gear.