Can you get them? I just completed a match 19-0 and didn’t get a perfection for it 
Does it have to be slayer?
It must be completed in a Slayer based game-type. Any Objective based game-type will not count.
> Can you get them? I just completed a match 19-0 and didn’t get a perfection for it
>
> Does it have to be slayer?
Yes it must be slayer, Kills dont count on Objective its all about playing the objective any Slayer gametype will work. Swat, Regicide, BTB, Infinity Slayer.