The SWAT team was using the vacant house at the corner of Harmony Grove Church Rd and Cedarcrest Rd for training. The property owner is getting ready to tear down that house. He allowed the SWAT team to use it for training before tearing it down. Most of the callouts are at night when it is hard to see. The house was used for night training. Training lasted until 11 p.m. The loud noise and flash that you saw was from a noise/flash diversionary device ("flash bang"). There were no gunshots fired at that location.