Colonel Ryan says the drug dealer Ruiz is in the Fort Griffith "brig." Army personnel would say "stockade," as brig is a Navy term.
Brown and Gerhardt visit drug/arms dealer Jimenez to procure the missiles. Grey, Williams, and Blane remain outside on overwatch with scoped rifles. At 18:28 the view through one scope shows the side of Jimenez's house, not the men inside, so that shooter is of no use. Also, a drug/arms dealer who requires as much armed personnel as Jimenez would likely have armored windows, rendering the 5.56 NATO rifles shown as useless.