Not working on Dedicated server. Why?? Any solution?.

[Norbak 10]

Guardogs.sqf from Blitzy script for Arma 2 and Arma 2 OA.

Why isn't this script working on a dedicated server and doing under a hosted?

if (Isserver) then {
//private = ["_dog"];

_leader = _this select 0;
_leader2 = objNull;
_leader2 = _this select 3;
if (!isnull (_leader2 select 0)) then {
	_leader = _leader2 select 0;
};

if (isnil "RE") then {[] execVM "\ca\Modules\MP\data\scripts\MPframework.sqf"};



_side = side _leader;
_grp = creategroup _side;	

_random = round(random 4) +3;

for "_i" from 1 to _random do {
_type = round(random 1);
_breed = "Pastor";
switch (_type) do {
	case 0:
{
	_breed = "Pastor";
};
	case 1:
{
	_breed = "Fin";
};
};	

		//_dog = _grp createUnit [_breed, getpos _leader,[],20,"none"];
		_dogname = format ["k9%1",round (random 1000)];
		call compile format ['"%2" createUnit [getpos _leader, _grp,"%1=this; this setSpeedMode ""full"";this disableAI ""AUTOTARGET"" ; this disableAI ""TARGET"" ; this setCombatMode ""BLUE"";this setbehaviour ""aware""",1]',_dogname,_breed];
		_dog = call compile format ["%1",_dogname];

		_dog setVariable ["_sound1", "dog_01"];
		_dog setVariable ["_sound2", "dog_02"];

		[_dog,_leader] spawn {
		_dog = _this select 0;
		_leader = _this select 1;

		while {alive _dog} do
		{	
				_near_humans = [];
				_alive_humans = [];
				_distance = 1000;
				_neareast = objNull;
				_near_humans = position _dog nearEntities ["man",100];
					//{if ((side _x != side _leader) && (side _x != side _dog)) then {_alive_humans = _alive_humans + [_x];_dog knowsabout _x;}}forEach _near_humans;
					{if ((side _dog)getFriend (side _x) <0.6) then {_alive_humans = _alive_humans + [_x];_dog knowsabout _x;}}forEach _near_humans;
						if (count _alive_humans >0)  then {
						_nearest = _alive_humans select 0;
						_distance = (position _dog) distance (_nearest);
						if ((_distance > 75) && (_distance < 100)) then {
						_nic = [objNull, _dog, rSAY, "dog_02"] call RE;
						_dog dowatch _nearest;
					};
						if ((_distance > 50) && (_distance < 75)) then {
						_nic = [objNull, _dog, rSAY, "dog_01"] call RE;
						_dog domove position _nearest;
						_dog setspeedmode "FULL";
					};
						if ((_distance > 15) && (_distance < 50)) then {
						_nic = [objNull, _dog, rSAY, "dog_01"] call RE;
						_dog domove position _nearest;
						_dog setspeedmode "FULL";
					};
						if ((_distance > 10) && (_distance < 15)) then {
						_dog domove position _nearest;
						_dog setspeedmode "FULL";
					};
						if (_distance < 10) then {
						_nic = [objNull, _dog, rSAY, "dog_maul01"] call RE;
						_dog domove position _nearest;
						_dog setspeedmode "FULL";
						[_nearest, _dog] execvm "scripts\dogattack.sqf";
					};	
				};
			sleep 2;
			//_dog domove position _leader
			_dog domove [(getpos _leader select 0) - ((random(10)+30)*sin(getdir _leader - 180)), (getpos _leader select 1) - ((random(10)+30)*cos(getdir _leader - 180))];
			_dog setspeedmode "FULL";
		};
	};
};

};	

[Schatten 136]

Are there any errors in RPT?