[MAP] Map Model

[kingboughey]

I have just released a new airport in sandy shores: https://www.gta5-mods.com/maps/sandy-shores-international-airport-map-editor-menyoo-low-fps-kingboughey
But I feel map editors is outdated now, yet I have no knowledge in map models or ymaps. I've read that you can port props to a ymap using 3DS maps but I don't even know where to start, so I was wondering if anyone with map model knowledge could do it for me?

Much appreciated.