When the second flare is launched at 34:20, the same enemy insurgents are in the same positions as they are at the first flare at 30:00, but at a slightly different camera angle.
At 29:43, Blane tells Gerhardt to launch parachute flares once Williams has fired his mortars. As soon as Blane leaves, Gerhardt launches the flares, before the mortars are fired.
The frequency of the Forward Support Base Transceiver is 14.29328MHz. That is an Amateur Radio Frequency not military.
The U.S. soldiers in Afghanistan do not have ISAF patches on their uniforms; they are required to have them.