How to make other group/unit leader

[splatsh 10]

How to make chopper stand still and wait for "frank"/_group_2 ???

And when "frank" is inside chopper, then chopper go to waypoint "_waypoint_1"

Now the chopper is unload the squad, then chopper fly away.

frank and car is on there way to the chopper at that time, so I need to get the chopper to wait for him.

How to?

Here is my code so far.

_this = createCenter west;
_center_0 = _this;

//////////////////////////////////////////////////////////////////////////////////////////////////////
// Create _vehicle_0

 _this = createVehicle ["MH60S", [14649.822, 11875.108], [], 0, "FLY"];
 _vehicle_0 = _this;
 _this setDir -73.528984;
 _this setVehicleVarName "heli";
 heli = _this;




//////////////////////////////////////////////////////////////////////////////////////////////////////
// Create Group_1

_group_1 = createGroup _center_0; 
_this = _group_1 createUnit ["USMC_Soldier_Pilot", [14649.822, 11875.108], [], 0, "FLY"];
 _unit_1 = _this;
 _this setDir 182.9581;
 _this setVehicleVarName "pilot";
 pilot = _this;
 _this setUnitAbility 0.60000002;
 if (true) then {_group_0 selectLeader _this;};
 _this moveInDriver heli;

_this = _group_1 createUnit ["USMC_Soldier_Pilot", [14649.822, 11875.108], [], 0, "FLY"];
 _unit_1 = _this;
 _this setDir 182.9581;
 _this setVehicleVarName "pilot2";
 pilot2 = _this;
 _this setUnitAbility 0.60000002;
 _this moveInCargo heli;

_this = _group_1 createUnit ["USMC_Soldier_Pilot", [14649.822, 11875.108], [], 0, "FLY"];
 _unit_2 = _this;
 _this setVehicleVarName "Gunner1";
 Gunner1 = _this;
 _this setUnitAbility 0.60000002;
 _this moveInTurret [heli, [0]];

_this = _group_1 createUnit ["USMC_Soldier_Pilot", [14649.822, 11875.108], [], 0, "FLY"];
 _unit_3 = _this;
 _this setVehicleVarName "Gunner2";
 Gunner2 = _this;
 _this setUnitAbility 0.60000002;
 _this moveInTurret [heli, [1]];

//////////////////////////////////////////////////////////////////////////////////////////////////////
// Waypoint heli pilot team /_group_1
//////////////////////////////////////////////////////////////////////////////////////////////////////
_this = _group_1 addWaypoint [[12078.981, 12720.614], 0];
_this setWaypointType "TR UNLOAD";
_this setWaypointStatements ["true", "{unassignvehicle _x} foreach units Ohara;"];
_waypoint_0 = _this;

_this = _group_1 addWaypoint [[14615.212, 12302.575, 0], 0];
_this setWaypointStatements ["true", "hint ""deleteVehicle heli"";"];
_waypoint_1 = _this;






//////////////////////////////////////////////////////////////////////////////////////////////////////
// Create _vehicle_1 / M2

 _this = createVehicle ["HMMWV_M2", [12737.207, 12256.813], [], 0, "CAN_COLLIDE"];
 _vehicle_1 = _this;
 _this setDir 315.40115;
 _this setVehicleVarName "M2";
 M2 = _this;


//////////////////////////////////////////////////////////////////////////////////////////////////////
// Create _group_2

_group_2 = createGroup _center_0;
_this = _group_2 createUnit ["FR_Light", [12738.283, 12255.289], [], 0, "CAN_COLLIDE"];
 _unit_4 = _this;
 _this setVehicleVarName "frank";
 frank = _unit_4;
 _this setUnitAbility 0.60000002;
 if (true) then {_group_2 selectLeader _this;};

//////////////////////////////////////////////////////////////////////////////////////////////////////
// Waypoint M2 team / _group_2
//////////////////////////////////////////////////////////////////////////////////////////////////////
_this = _group_2 addWaypoint [[12737.209, 12256.783], 0];
_this setWaypointType "GETIN NEAREST";
_waypoint_5 = _this;

_this = _group_2 addWaypoint [[12696.206, 12299.229], 0];
_this setWaypointStatements ["true", ""];
_waypoint_6 = _this;

_this = _group_2 addWaypoint [[12587.527, 12503.487, 0], 0];
_waypoint_7 = _this;

_this = _group_2 addWaypoint [[12120.621, 12651.323, 0], 0];
_waypoint_8 = _this;

_this = _group_2 addWaypoint [[12024.262, 12668.17, 0], 0];
_this setWaypointType "GETOUT";
_this setWaypointStatements ["true", "unassignVehicle frank;"];
_waypoint_9 = _this;

_this = _group_2 addWaypoint [[12078.981, 12720.614], 0];
_this setWaypointType "GETIN NEAREST";
_this setWaypointStatements ["true", "frank assignAsCargo heli; [frank] orderGetIn true;"];
_waypoint_10 = _this;




//////////////////////////////////////////////////////////////////////////////////////////////////////
// Create _group_3

_group_3 = createGroup _center_0;
_this = _group_3 createUnit ["FR_OHara", [14649.822, 11875.108], [], 0, "CARGO"];
 _unit_5 = _this;
 _this setVehicleVarName "Ohara";
 Ohara = _unit_5;
 _this setUnitAbility 0.60000002;
 if (true) then {_group_3 selectLeader _this;};
 _this moveInCargo [heli, 1];

_this = _group_3 createUnit ["FR_Miles", [14649.822, 11875.108], [], 0, "CARGO"];
 _unit_6 = _this;
 _this setVehicleVarName "Miles";
 Miles = _unit_6;
 _this setUnitAbility 0.60000002;
 _this moveInCargo [heli, 3];

_this = _group_3 createUnit ["FR_Rodriguez", [14649.822, 11875.108], [], 0, "CARGO"];
 _unit_7 = _this;
 _this setVehicleVarName "Rodriguez";
 Rodriguez = _unit_7;
 _this setUnitAbility 0.60000002;
 _this moveInCargo [heli, 2];

_this = _group_3 createUnit ["FR_Sykes", [14649.822, 11875.108], [], 0, "CARGO"];
 _unit_8 = _this;
 _this setVehicleVarName "Sykes";
 Sykes = _unit_8;
 _this setUnitAbility 0.60000002;
 _this moveInCargo [heli, 4];


//////////////////////////////////////////////////////////////////////////////////////////////////////
// Waypoint squad team / _group_3
//////////////////////////////////////////////////////////////////////////////////////////////////////
_this = _group_3 addWaypoint [[12048.579, 12682.741, 0], 0];
_this setWaypointStatements ["true", "[Ohara] join player; [Miles] join player; [Rodriguez] join player; [sykes] join player;"];
_waypoint_2 = _this;