rocket launchers used to make a loud echo that could be heard all across the map but now its hard to notice when theres one such vehicle around, in real life soldiers describe this loud sound prior to the impact when these vehicles attacked from several kilometer away
it would be cool if platforms such as katyusha, andryusha, panzerwerfer, calliope, type 75 had their distinctive sound volume and range increased
Tor and HQ17 for example also seem to have an effect on team morale and seeing or hearing it working from afar looks awesome