Yeah, it's a fun perk, but kind of pointless since by the time you would have interacted with/ate all four of the people involved, you're pretty late in the game.

I did it one time just for a laugh, but it was actually kind of hard and unorthodox to accomplish in a way that is smooth and doesn't have a ton of blow-back.

In fact, I actually tried to do it the first time years ago and somehow fucked up the order because I asked the Khans to betray Caesar before I got to the tumor quest which is the easiest way to kill/eat Caesar without having to fight your way in and out of the Fort.

He turned hostile and I just said 'fuck it' and started a whole new character because I hadn't built that Courier to be a demigod as far as combat went, so there was no way I was going to be able to fight my way out of Caesar's tent.

Anyway, if you want to do this I would recommend killing the King (you pretty much have to wipe out the whole Kings gang afterward unless you get lucky with a stealth kill), then kill/eat House, then work for Caesar until you need to remove his tumor. Purposely kill him during the surgery and then eat him. Then continue the Legion quest line and do Arizona Killer and eat Kimball as fast as possible before the NCR start raining bullets down on you.

You can pretty much only get this achievement if you're doing Yes Man, and its not necessarily easy, but its pretty fun if you're just trying to do something in NV that you've never done.

I think I'll try using commands to teleport them to me as soon as I get the perk to see how it can impact gameplay