3d Studio max is a modeling program correct? What am I saying, yes it is. There are two "solid objects" in hammer. There are brushes (solids) and models for details (made in a modeling program then ported to be used in Hammer). So in a nut shell, no you cant port over. Hammer calcuates in planes and modeling calculates in polygons if im not mistaken. And Ive worked with autocad, so I know it cant be ported over. So the answer is a BIG FAT NO.
BTW the new hammer uses .vmf's and .map's, I dont believe 3D studio max or AutoCad uses these extentions.
I understand that since you are in an engineering firm and you need to cut the time in half, but why depribe your self of creating the world in hammer your self? That is where the fun is.
AND WELCOME TO THE SNARKPIT! just be careful admiting your a noob, cause vash will eat your legs.