I like these kinds of stories where MC's don't take over someone else's body but instead remember there past life. It stops the story to take those wierd turns like "turned into a baby but inside I am a grown a*s man" or "I suddenly became (inserted generic game/novel character), now I'll go on a redemption arc".
Note: I am not saying these cliches are bad, it just make story awkward at some point.
Good examples of the troops are: Cale Henitus, Lloyd Frontera and Ed Rothtaylor.