diff --git a/SQF/dayz_code/compile/BIS_fnc/fn_param.sqf b/SQF/dayz_code/compile/BIS_fnc/fn_param.sqf
new file mode 100644
index 000000000..64d21e46d
--- /dev/null
+++ b/SQF/dayz_code/compile/BIS_fnc/fn_param.sqf
@@ -0,0 +1,66 @@
+/*
+        Author: Karel Moricky
+ 
+        Description:
+        Define script parameter
+ 
+        Parameter(s):
+        _this select 0: ARRAY                   - list of params
+        _this select 1: NUMBER                  - selected index
+        _this select 2 (Optional): ANY          - default param (used when param is missing or of wrong type)
+                                                - you can overload default value by setting 'BIS_fnc_<functionName>_<index>'
+        _this select 3 (Optional): ARRAY        - list of allowed type examples (e.g. ["",[],0,objnull])
+        _this select 4 (Optional): NUMBER       - If value is ARRAY, checks if it has required number of elements
+ 
+        Returns:
+        ANY - either value from list of params, or default value
+*/
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////
+ 
+private ["_params","_id","_value","_thisCount"];
+//disableserialization; //--- Do not put this here or none of the scripts where BIS_fnc_param is used will be serialized!
+ 
+_thisCount = count _this;
+//if (typename _this != typename [])    then {_this = [_this]};
+_params = if (_thisCount > 0)           then {_this select 0}           else {[]};
+_id = if (_thisCount > 1)               then {_this select 1}           else {0};
+if (typename _params != typename [])    then {_params = [_params]};
+//if (typename _id != typename 00)      then {_id = 0};
+_value = if (count _params > _id)       then {_params select _id}       else {nil};
+ 
+//--- Assign default value
+if (_thisCount > 2) then {
+        private ["_default","_defaultOverload","_types","_typeDefault","_type"];
+        _default = _this select 2;
+ 
+        //--- Overload default value
+        #ifndef DISABLE_REWRITE
+        if !(isnil "_fnc_scriptName") then {
+                _defaultOverload = missionnamespace getvariable (_fnc_scriptName + "_" + str _id);
+                if !(isnil "_defaultOverload") then {
+                        _default = _defaultOverload;
+                };
+        };
+        #endif
+ 
+        //--- Default set
+        if (isnil "_value") then {
+                _value = _default;
+        };
+ 
+        //--- Check number of elements (ARRAY type only)
+        if (_thisCount > 4) then {
+                if (typename _value == typename []) then {
+                        private ["_valueCountRequired","_valueCount"];
+                        _valueCountRequired = [_this,4,0,[0,[]]] call bis_fnc_param;
+                        if (typename _valueCountRequired != typename []) then {_valueCountRequired = [_valueCountRequired]};
+                        _valueCount = count _value;
+                        if !(_valueCount in _valueCountRequired) then {
+                                _value = _default;
+                        };
+                };
+        };
+};
+ 
+_value
\ No newline at end of file
diff --git a/SQF/dayz_code/init/compiles.sqf b/SQF/dayz_code/init/compiles.sqf
index 07e3f3f2e..826971512 100644
--- a/SQF/dayz_code/init/compiles.sqf
+++ b/SQF/dayz_code/init/compiles.sqf
@@ -453,6 +453,7 @@ if (!isDedicated) then {
 	BIS_fnc_vectorAdd =         compile preprocessFileLineNumbers "\z\addons\dayz_code\compile\BIS_fnc\fn_vectorAdd.sqf";	
 	BIS_fnc_halo =              compile preprocessFileLineNumbers "\z\addons\dayz_code\compile\BIS_fnc\fn_halo.sqf";
 	BIS_fnc_findNestedElement =	compile preprocessFileLineNumbers "\z\addons\dayz_code\compile\BIS_fnc\fn_findNestedElement.sqf";
+	BIS_fnc_param = 			compile preprocessFileLineNumbers "\z\addons\dayz_code\compile\BIS_fnc\fn_param.sqf";
 
 	fnc_buildWeightedArray = 		compile preprocessFileLineNumbers "\z\addons\dayz_code\compile\fn_buildWeightedArray.sqf";		//Checks which actions for nearby casualty
 	fnc_usec_damageVehicle =		compile preprocessFileLineNumbers "\z\addons\dayz_code\compile\fn_damageHandlerVehicle.sqf";		//Event handler run on damage