Check out Military Base 3D Model Low-poly 3D model on CGTrader for $9. High-quality mesh by RVSTU: 39780 polys, 22342 vertices. Textured, UV Mapped.
BLEND (Blender, filesize: 6.05 MB), UNITYPACKAGE (Unity 3D, filesize: 1000 KB), MA (Autodesk Maya, filesize: 3.9 MB), FBX (Autodesk FBX, filesize: 2.49 MB), MAX (Autodesk 3ds Max, filesize: 5.24 MB), C4D (Cinema 4D, filesize: 4.26 MB)