Too much vertiges.

Hello Guys, i have imported a model, which i would have in CoD2, i get the object from a website, then i exported per maya to .xmodel_export (first it was 3ds, then .obj and now by maya .xmodel_export). I opened Asset manager and did try to export it now to COD2, but i have get this error:

Object [MeshShape] with material [material__124] has 36419 > 5450 vertices on 58382 triangles. Try separating the object into multiple objects.

What i have to do now?
Why this happens?

Btw. is there not a other way, to don't disconnect parts of objects? I can't replace orginal images.

Try splitting and then combine it all in 2 or more parts. And now export all the parts as obj. (enable objExport.mll in plugins)
Open a new scene and import each obj and group them.