Important: Magazines in your inventory are not objects but simply string references with the same string content so you can't check which IR Strobe a unit is currently using. That way you can only carry ONE IR strobe. If you need to carry more, put them in your rucksack.

Adding an IR strobe to units, even AI:

  _unit addMagazine "ACE_IRStrobe";

Making AI use the IR strobe:

  ["ace_sys_irstrobe_aradd", [_unit]] call CBA_fnc_globalEvent;

Creating an attached IR strobe that blinks:

  _irstrobe = "ACE_IRStrobe_Object" createVehicle  getPos  _crate;
  _irstrobe attachTo[_crate,[0,0,0],""];
  ["ace_sys_irstrobe_aradd", [_irstrobe]] call CBA_fnc_globalEvent;