ACE3/addons/frag/functions/fnc_removeTrack.sqf

#include "script_component.hpp"

private ["_ret"];
_ret = true;
if(IS_ARRAY((_this select 0))) then {
    _ret = false;
} else {
    if((_this select 0) in GVAR(trackedObjects)) then {
        GVAR(trackedObjects) = GVAR(trackedObjects) - [(_this select 0)];
    } else {
        _ret = false;
    };
};
_ret