0 = [] spawn {
  sleep 10;

  private ["_maxZeds","_minDist","_maxDist","_addMed","_ZedsSlow","_ZedsFast","_sZedsNum","_mZedsNum","_fastSlow","_ZedType","_plusX","_plusY"];
  _minDist = 50;
  _maxDist = 50;
  _addMed = 1;

  _ZedsSlow= ["RyanZombieC_man_1SlowOpfor","RyanZombieC_man_polo_1_FSlowOpfor","RyanZombieC_man_pilot_FSlowOpfor","RyanZombieC_journalist_FSlowOpfor","RyanZombieC_OrestesSlowOpfor","RyanZombieC_NikosSlowOpfor","RyanZombieC_man_polo_2_FSlowOpfor","RyanZombieC_man_polo_4_FSlowOpfor","RyanZombieC_man_polo_5_FSlowOpfor","RyanZombieC_man_polo_6_FSlowOpfor","RyanZombieC_man_p_fugitive_FSlowOpfor","RyanZombieC_man_w_worker_FSlowOpfor","RyanZombieC_scientist_FSlowOpfor","RyanZombieC_man_hunter_1_FSlowOpfor"];
  _ZedsFast = ["RyanZombieC_man_1MediumOpfor","RyanZombieC_man_polo_1_FMediumOpfor","RyanZombieC_man_pilot_FMediumOpfor","RyanZombieC_journalist_FMediumOpfor","RyanZombieC_OrestesMediumOpfor","RyanZombieC_NikosMediumOpfor","RyanZombieC_man_polo_2_FMediumOpfor","RyanZombieC_man_polo_4_FMediumOpfor","RyanZombieC_man_polo_5_FMediumOpfor","RyanZombieC_man_polo_6_FMediumOpfor","RyanZombieC_man_p_fugitive_FMediumOpfor","RyanZombieC_man_w_worker_FMediumOpfor","RyanZombieC_scientist_FMediumOpfor","RyanZombieC_man_hunter_1_FMediumOpfor"];
  _sZedsNum = count _ZedsSlow;
  _mZedsNum = count _ZedsFast;
  zAmbientGroup = createGroup east;

  // Checking if player alive
  while {alive player} do {

    // Checking if group is present
    if (isNull zAmbientGroup) then {zAmbientGroup = createGroup east};

    // Selecting number of zeds, more players - less zombies, too keep net load balanced.
    if ((count allPlayers) < 5) then {_maxZeds = 9 - (count allPlayers)} else {_maxZeds = 4};

    // Checking if limit reached
    if (count units zAmbientGroup < _maxZeds) then {

      // Selecting type and position
      _fastSlow = (floor(random 3))+1;
      _ZedType = _ZedsSlow select (floor(random _sZedsNum ));

      if ( _fastSlow > 2 and _addMed == 1) then {
        _ZedType =_ZedsFast select (floor(random _mZedsNum ));
      };

      _plusX = random 2;
      if (_plusX > 1) then {_plusX = 1};
      if (_plusX < 1) then {_plusX = -1};

      _plusY = random 2;
      if (_plusY > 1) then {_plusY = 1};
      if (_plusY < 1) then {_plusY = -1};

      _posX = (_minDist + random _maxDist) * _plusX;
      _posY = (_minDist + random _maxDist) * _plusY;

      while {true} do {
        //selecting position
        sleep 1;
        spawnPos = getPos player;
        spawnPos = [(spawnPos select 0) + _posX, (spawnPos select 1) + _posY,0];
        objPos = getPos Player;
        // Spawning zombie
        if ({_x distance2D spawnPos < (_minDist*0.75)} count allPlayers == 0) exitWith {
          zUnit = zAmbientGroup createUnit [_ZedType,spawnPos,[],1,"NONE"];
        };
      };
    };
    //Checking if zombie is dead or player moved too far
    {if (((player distance2D _x) > (_minDist+_maxDist)*1.5) || !(alive _x)) then {deleteVehicle _x}} forEach units zAmbientGroup;
    // Removing oldest waypoint
    while {(count (waypoints zAmbientGroup)) > 1} do {deleteWaypoint ((waypoints zAmbientGroup) select 0)};
    // Adding waypoint
    wp = zAmbientGroup addWaypoint [objPos,0];
    wp setWaypointSpeed "Full";
    wp setWaypointType "MOVE";
    wp setWaypointBehaviour "COMBAT";
    sleep 10;
  };
};