Possibly with small calibre weapons in urban areas. Sound ranging is a solved and reliable way of identifying artillery locations and was the gold standard unt

Possibly with small calibre weapons in urban areas. Sound ranging is a solved and reliable way of identifying artillery locations and was the gold standard until counter-battery radar was developed during WW2. It's still in service with all major militaries (in the West, largely using BAE HALO) as it's a completely passive sensor system and therefore not subject to attack from HARM.