Arma 3 Mission Parameter Builder

Build the class Params {} block for your description.ext without hand-coding nested class syntax. Add parameters from presets or scratch, then copy the finished block straight into your mission file.

Add Preset Parameter

Generated description.ext block

Add a parameter above to see the output.

description.ext Rules

  • ● Values must be integers only — no strings or floats.
  • ● texts[] and values[] must have the same number of entries.
  • ● Class names must be unique — duplicate class names silently overwrite each other.
  • ● The default value must exist in values[].
  • ● Parameters appear in the server browser lobby before the mission starts.

Related Tool

Arma 3 Mission Cycle Builder

Build your server's mission rotation list.

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