There was (an exchange of) 'gunfire' between the gangs. [=they shot guns at each other]
We heard 'gunfire' in the distance.
(..) And there will be a womens touch too. - That's marvelous. - Indeed. Good god! - This was gunfire! - No, no, no, no. Hammer and nail, wasn't it? My colleagues, probably just... putting up a painting. I'll go and check. (..)2009 Sherlock Holmes