You bring up an interesting question about an assignment list of all the
OES units.
I was told directly from and inside source at OES, that due to the need for
security reasons, they do not publish a list of assignments for the public.
That OES officer said that you may well be able to read about individual assignments as they happen and obtain the assignments that way.
Over the years I have built a list for the type 2s, type 3s and some other OES units
as they are assigned. This list is not complete and never will be given the
lack of access for the public, it seems. Maybe it will change, not sure
at this point.