F.E.A.R. 3’s Soul King multiplayer mode has a trailer. You can quite literally see it below.
"Players will start out as a spectre, capable of possessing enemies to gain the skills and weapons of the body they inhabit. While possessing a body, players will be able to collect souls through killing enemies, however, will need to constantly battle other AI enemies and the three other players eager to take them down and steal their harvested souls."