The Maunakea Spectroscopic Explorer (MSE) is a proposed major modernisation of the 3.6-m Canada-France-Hawaii Telescope into a 11.25-m aperture, 1.52 square degree field of view telescope. MSE will be a fully dedicated facility to carry out multi-object spectroscopy surveys. MSE will provide a spectral resolution performance of R∼2 500 - 40 000 across the wavelength range of 0.36 - 1.8 μm. On behalf of the MSE team, I outline the current status of the project and the science cases for large spectroscopic surveys of faint galaxies.