IMCr: enroute OCAS IMC VFR, controlled IMC app/dep
E-IR: enroute CAS IMC IFR, uncontrolled VMC VFR app/dep
or did I mess up?
You are mixing up a lot of terms:
"IMCr: enroute OCAS IMC VFR"
VFR is not allowed in IMC (that is the definition of IMC). The IMCr (as with an IR) allows the holder to fly IFR - IMC or VMC not relevant to using the qualification.
"controlled IMC app/dep"
Controlled/Uncontrolled is not relevant at all.
"E-IR: enroute CAS IMC IFR"
IMC not relevant. It is the ability to fly IFR that is important. I haven't checked but does E-IR specify only in controlled airspace?
"uncontrolled VMC VFR app/dep"
VFR (and hence by definition VMC) correct. But can be from/to a controlled airfield.