I wonder what it comes down to. GTAV is only 12th, and is a game that sells quite consistently throughout the year, so DOOM may reach over 5k if the numbers are favourable. That would comes down to more than 1/8 of PS4 first week and 1/6 of XB1, which is decent I think for a late port of a year-and-a-half game.Still a good sign in a difficult market for the console, especially considering the period and the many new or more commercially powerful releases
Please note: the above lines are pure speculation (except for the fractions that derive from previous estimations), and we need the individual unit chart before we can say anything with any degree of certainty. Do not think I am claiming DOOM sold 5k on Switch.