The movie is about two men finding a hole in a wall in some cave I think, there were some sounds coming from this hole and shit, then they started excavating the entrance, it took them a couple of days, then they went in, it was really tight there, and as it turns out there were some monsters there and shit, also before they went in I think some other dude killed himself cause the monsters could interfere with people's minds and shit. It was set in a warm climate I think, in America or Australia and I don't think it came out earlier than 1995 and later than 2015. Also one of the main characters looked like Scout from Team Fortress 2. Anyone knows the name of this movie?