When launching missiles - /mlrsfire or /hellfire -doesnt matter - the intervals between missiles are too small and experienced players on the server immediately understand that this is not a standard launch - please make the intervals between missiles standard or give the opportunity to set the intervals between the launch of each missile in the series yourself.

You can change that in the config file.

There isnt any time settings in config, sir:

I think you don't have the newest version of the plugin. Download the latest release, then the option should be there. :)

Actual version. What I should to do? Delete config and reload plugin, right?

Hmm... weird. Try to reload the plugin.

The config file should be like this:

{
  "PluginPicture": 76561############,
  "PluginPrefix": "<color=#191A28>[</color><color=#CC3B28>MLRS Hellfire</color><color=#191A28>]</color> ",
  "HellfireRocketDamageModifier": 1.0,
  "HellfireRocketExplosiveRadiusModifier": 1.0,
  "MLRSFireInterval in milliseconds": 1.0,
  "RemoteMLRSFireInterval in milliseconds": 1.0,
  "HellfireFireInterval in milliseconds": 0.3,
  "Allow using of MLRS for all players like in vanilla rust": true,
  "Max amount of rockets which can spawn when using hellfire command with custom missle amount": 50
}

Fully reinstalled, now it works correct, thx, sir.