  We provide a comprehensive comparison of W/Z vector boson production data in
proton-lead and lead-lead collisions at the LHC with predictions obtained using
the nCTEQ15 PDFs. We identify the measurements which have the largest potential
impact on the PDFs, and estimate the effect of including these data using a
Monte Carlo reweighting method. We find this data set can provide information
about both the nuclear corrections and the heavy flavor (strange) PDF
components. As the proton flavor determination is dependent on nuclear
corrections (from heavy target DIS, for example), this information can also
help improve the proton PDFs.
