In the scene plane 33000x45600mm on which the lawn is planted as in the preview. Disable scatters when editing.
In the archive:
3ds max 2014, fbx, mat, textures, screenshots, scatter settings.
More grass models:
https://3dsky.org/3dmodels/show/football_pitch_lawn 
https://3dsky.org/3dmodels/show/lawn_grass_5 
https://3dsky.org/3dmodels/show/trava_gazon_1 
https://3dsky.org/3dmodels/show/grass_lawn 
https://3dsky.org/3dmodels/show/grass_and_clover_plantation  https://3dsky.org/3dmodels/show/vesennii_lug_trava 
https://3dsky.org/3dmodels/show/forest_grass 
https://3dsky.org/3dmodels/show/trava_strizhenyi_gazon 
https://3dsky.org/3dmodels/show/polevye_travy_2_trava_1 
https://3dsky.org/3dmodels/show/forest_grass_2_2