Messing around on the amazing editor i created a neighborhood firefight at Agia Marina. During a shootout at the neighborhood 161780 ID i ran in to the nearest house and looked out the window to see 3 Opfor standing out in the open! i start bursting at them and notice they wont die.. i found out later that the windows make the noise of being broken but its still counted as an invisible wall. If you can fix it it will build a lot more realism to the game.
Thank you