This page is a good reference for the actions you have to do to earn points in each of the four categories:
http://deadbydaylight.gamepedia.com/Bloodpoints#Killer_Point...You can track your progress in game by watching the points icons pop up on the left side of the screen. A full red circle means you've hit the 5000 mark.
To get this achievement you're going to need to have a very strong showing as the Killer. I earned this with the Doctor as I found it very easy to earn points using his special power.
Do NOT camp the hook once you have caught a survivor. You need to be constantly going after the survivors to keep them off the generators. If they save and heal a survivor, that just means you have more opportunities to get points.
For each category:
- Brutality: Each hit on a survivor is worth 300 points. This means that it's not enough to get one down (two hits) on each survivor. Letting them heal up gives you more chances to get hits. Destroying pallets also gives you points, and also makes it easier to chase survivors.
- Deviousness: Use your special power constantly and thoughtfully. In the case of the Doctor, I spammed the crap out of it during chases. Whichever killer you choose will dictate how you earn points here.
- Hunter: Long chases generate a lot of points. Even if you don't end up catching the survivor, keeping a long chase going keeps them from contributing to generators and can cover a lot of ground, throwing off other survivors as well.
- Sacrifice: You have to sacrifice all four survivors to get this. You could potentially do it with only three sacrifices if you get multiple hooks for each survivor, but it's good to aim for all four anyway.