_eastMarker = [];
{
    _currMarker = toArray _x;
    if(count _currMarker >= 11) then {
        _currMarker resize 11;
        _currMarker = toString _currMarker;
        if(_currMarker == "east_marker") then{
            _eastMarker append [_x];
        };
    };
} foreach allMapMarkers;

FNC_createTarget =
{
params ["_position","_direction","_type","_side","_marker"];
    _object = ([_position,_direction,_type,_side] call bis_fnc_spawnvehicle) select 0;
    _object addEventHandler ["killed",{deleteMarker "_this select 4";}];
    _object disableAI "MOVE";
    _object //return
};
{
    private _position = getMarkerPos _x;
    private _direction = 0;
    private _type = "sab_boat_freighter_o";
    private _side = WEST;
    missionNamespace setVariable [format["%1", _forEachIndex], [_position, _direction, _type, _side , _x] call FNC_createTarget];
} forEach _eastMarker;