Ever since the new samples have been added, it seems that 155mm artillery shells no longer emit their characteristic howl as they approach. Please reinstate this feature, as it warns ground units of approaching artillery, and more importantly, it happens in real life for both bombs (https://www.youtube.com/watch?v=TtWw1ubhnaE) and artillery (https://www.youtube.com/watch?v=v8eLH3VbJOQ)