MSSQL compatibility?

Our server admin is requiring that our new site has a MSSQL database and not a MySQL database. We were planning on building a Drupal 8 website (as we’re drupal experts), but after doing a bit of research it just looks like any existing MSSQL support for Drupal is spotty, and in such low demand that it won’t be getting much more support anytime soon.

Does anyone have any hands-on experience with Drupal and MSSQL? Or does anyone know of any MSSQL content management systems that come close to doing what Drupal can do?

Drupal version: