I have a hollow Brush around a Sentry. The interior textures are set to Player Clip and the Exterior Textures are set to Block Bullets. The purpose of the Brush is to act like a barrier to protect the Sentry that can be destroyed with func_breakable, but the Sentry cannot see past the brush. I've been looking for ways around this but I haven't figured it out yet. How do I make it so the Sentry can still see and shoot people through the Brush?