You can use CFrame.lookAt to make the person to face towards the other person.
local character = ? --make this the model of the person who is being beaten
local otherCharacter = ? --make this the model of the person who is beating them
local lookCFrame = CFrame.lookAt(character.PrimaryPart.Position, otherCharacter.PrimaryPart.Position)
character:SetPrimaryPartCFrame(lookCFrame)
--play animation here