... now the map loads OK ...! 
... still, I can't save missions on it, since I must be missing a lot of objects, not your fault as I am using a 4.09 version of the game ...
That would probably be because I made the map in DBW 1.71 which is 4.10 I suppose. There might be some objects that I added afterwards, from mods and such, but not all that many There are possibly objects by Ufflakke, repaints of buildings and buildings suitable for Mid eastern maps. But in any case, they were all in my install since some 4 years ago or so.
here is a list of my installed objects:
OBJECTS_ChiattaObj
OBJECTS_Corsairs_Static
OBJECTS_Donbass_Trees
OBJECTS_HT_PalmTrees_1024
OBJECTS_Landing_Crafts
OBJECTS_Object test
OBJECTS_objects_&_wrecks
OBJECTS_Objekty Mapy CSR
OBJECTS_Oil_Well
OBJECTS_Pribaltic objects
OBJECTS_Reichstag
OBJECTS_Uufflakke_Castle
REPAINT_00_ShipPack2_vp
REPAINT_Mideast
REPAINT_Roads_KDP
REPAINT_rofl_norway_bldg
I certainly did not use objects from all of these, just a few most likely - though lots and lots of palm trees ... ha ha. Maybe this might help you locate some of the missing objects ...