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Enables or disables a trait or alters a trait of the given unit. Custom trait can only be a bool.

Default traits are:
  • Number audibleCoef - A lower value means the unit is harder to hear
  • Number camouflageCoef - A lower value means the unit is harder to spot
  • Number loadCoef - Equipment weight multiplier affecting fatigue and stamina
  • Boolean engineer - Ability to partially repair vehicles with toolkit, equivalent to engineer = 1; in CfgVehicles
  • Boolean explosiveSpecialist - Ability to defuse mines with toolkit, equivalent to canDeactivateMines = 1; in CfgVehicles
  • Boolean medic - Ability to treat self and others with medikit, equivalent to attendant = 1; in CfgVehicles
  • Boolean UAVHacker - Ability to hack drones, equivalent to uavHacker = 1; in CfgVehicles
Object Manipulation


unit setUnitTrait [skillName, value, isCustom]
unit: Object - The unit whose trait should be set
skillName: String - Name of the skill
value: Boolean or Number - Value (see above)
isCustom (optional): Boolean - Must be set to true in case of custom
Return Value:


Example 1:

Additional Information

See also:
getUnitTrait getAllUnitTraits


Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note
Posted on 2016-04-27 - 18:12 (UTC)
The higher the value for the loadCoef the less stamina a unit has. Negative values will dramatically increase the stamina actually to a point where it extends the stamina bar.
Posted on 2017-10-20 - 05:49 (UTC)
explosiveSpecialist trait can defuse mines (i.e. satchel charges), whilst the engineer trait alone cannot.