This achievement can be completed from either side if you have the skill to back it up.
Survivors have:
Altruism, Boldness, Objective, and Survival.
Altruism involves helping other survivors. You will get points for:
Healing, rescuing, taking a hit for another person, pallet & flashlight saves.
Boldness involves chases. You will get points for:
Being in a chase (running in front of the killer), Vaulting a window while in a chase, stunning a killer, and breaking totems (both dull and hex totems).
Objective points involve working towards escape. Generator Progress and Opening a gate. Gate progress yields no points, but opening a 99% gate gives full points.
Survival involves keeping yourself alive. Wiggling in the killers grasp, Healing yourself, Stunning with the perk Head On, struggling on hook against the Entity, and escaping all give survival points.
The easiest categories to obtain max points are Boldness and Objective, as maps are typically in the survivors favor chase wise at the beginning of a match. Altruism can be good if your team has the time or needs to regroup. Survival is the hardest, as escaping gives 5000, but the other methods barely give you any.
Killers have these categories:
Brutality, Hunter, Deviousness, and Sacrifice.
Brutality has to do with injuring & downing survivors and destroying objects. You will get points for:
Hitting a survivor, breaking pallets, walls, and gens.
Hunter involves chasing. The longer a survivor is engaged in a chase, the more points you get.
Deviousness involves the use of a killer's power, usually hitting or downing with a lethal power, or use of a nonlethal power. Each killer is radically different, so I cannot say all of the point categorizations, but I can give the example of Huntress. She has two point categories, one for landing a hatchet hit, and one for a precise shot. The only difference between the two is the distance of the huntress when a hatchet hits a survivor.
Sacrifice involves killing survivors. Survivors who die by hook give the most points, those who die by more give less, and those who die on the floor give a measly 50.
The best categories are Hunter and Brutality, as survivors will often give you chances to gain lots of points in these categories.
As you improve with the killers and survivors, you will get this on your own. This is more a guide to the Bloodpoint system and how to get this achievement efficiently.