This is a heavily modified version of the overlay from the script "Radiation - DEMO" made by ALIAS. The script is intended for use with multiplayer missions. With minor modification the script will work with singleplayer.

When a player respawns the player object is changed to new one, this esentially renderes scripts for overlay useless in mulitplayer. To overcome this, the script uses a Respawn Handler created in the unit_init.sqf. When a player respawns the handler invokes the gasmask.sqf with arguments pointing to the current player object.

Edit gasmask.sqf and change line 4 to the equipment you want to trigger the overlay. In the below example the equipment is set to G_Balaclava_blk protection = "G_Balaclava_blk";

Change line 28 from (goggles _unit isEqualTo protection) to (headgear _unit isEqualTo protection) if the item which you want is located in a different slot, like headgear.

• If you wish to use the Arma 3 Contact DLC cbrn gear, keep in mind that the unit (cbrn_specialist) spawns with "G_AirPurifyingRespirator_01_nofilter_F" and later respawns with "G_AirPurifyingRespirator_01_F".
• If you whish to change the default sounds provided with this script, you can find free samples here https://freesound.org/home/. Audacity can be used to edit the sound according to your needs and exported to .ogg format.

• gasmask.sqf compiled to memory and lodaded from there instead of reading from disk each time.
• Custom overlays
• Custom sounds for equip/uneqip & breathing.
• Multiplayer compatible
• Compatible with respawns

• Gas mask overlay will remain after respawn until the player equips and then unequips the "Gas mask"

• Remove the overlay effect after respawn
• Optimize the code to have less impact on the client
• Create a singleplayer version of this script

• gasmask.sqf and unit_init.sqf had functions with the same name "fnc_overlay". This essentially froze the script, keep that in mind if you modify this script.

https://steamcommunity.com/sharedfiles/filedetails/?id=909790601