Okay, I've finally figured out that the IMT and the KB are way behind including any BSD content. I don't know if there is some bad blood or not, but, here is what I was able to find.
1. VMWorkstation 11.1 include the VMTools for FreeBSD 10.1; they aren't listed anywhere but when installed they say that's what they are
2. The notes say something about adding vxn0 as an ipconfig'ed device in rc.conf; Doesn't work, no such device
Found a note via Bing to change the .vmx virtual.ethernet adapter to vmxnet, which comes up as el0
But VMware notes state that better performance can be gained by e1000; so back it went, and /etc/rc.conf is now back to em0
Does anyone know if I've done the right thing so far?