im not enough good in lua scripting to use moose or mist but i found another script that works for me
local staticObj = {
["heading"] = 0,
["groupId"] = 3,
["shape_name"] = "rescuer_stretcher",
["type"] = "rescuer_stretcher",
["unitId"] = 3,
["rate"] = 100,
["name"] = "blesse",
["category"] = "Fortifications",
["y"] = 709525,
["x"] = -308713,
["dead"] = false,
}
coalition.addStaticObject(country.id.USA, staticObj)