Ark Logic at its fullest:

Find a nice fasola house, bomb his home until he comes out and is dazed. Then jump on his back and crack his head into rocks until he is asleep. (Knock some sense into him) Then while he is asleep shove meat down his throat until he loves you and will risk his life for you.

Makes perfect sense

To knock it out, use any sort of explosive (Grenades are cheap and have early unlock) and throw it at the Fasola while it's underground. It will look like a pile of sand and shouldn't react if you go up to it.

As soon as the explosion goes off, run up to the Fasola and mount it. You only have a few seconds to do this. Once you're on, try to find any nearby rocks/bones/etc and run into them. Every rock you hit will increase torpor and control. If control runs out, you will be dismounted.

DO NOT GO ON CLIFFS !! If the Fasola goes into the air at all, you will automatically dismount and lose all progress. Depending on your rates, it could take a long time to gain enough torpor.

TL;DR : Explode it, mount it, hit rocks, avoid cliffs.

-OtterWithATophat :D

Update 1: With the addition of the dossier, we now have a better idea of how this thing will be tamed. It appears to be a mix of a “heavy” knockout tame (think kark, titano, rock golem) and a “riding” tame (like equus and ESPECIALLY voidwyrm). The dossier states that you must “soften it up with explosives,” before hopping on and steering it into a rock. Based on this, it appears that the taming process involves using explosive weapons to damage it to a certain threshold, allowing us to hop on its back and ride it for some time. We will then have to seek out a solid obstacle (like the aforementioned rock) to crash it into, likely inflicting torpor on it (it’s immune or heavily resistant to tranqs from what the dossier says). This process will likely have to be repeated until the big gator is downed, at which point it will likely be the standard “feed while it’s down” process. The dossier makes no mention about sacrificing armored tames to it, so this part of the original concept was likely scrapped.

Thank you for reading! Keep in mind that this probably won’t be entirely accurate to its actual release, but it should give a general idea on what to expect.

- Phantom

Why does NOBODY mention how long it takes to knock out a high level?! I thought I would ride around for a little bit, hit some rocks and then start the taming process, until I saw how little torpor rocks deal. If you aren't near salt, metal, or crystal, this thing takes ages to knock out. I even adjusted my server settings but they dont apply to the little knockout minigame. Also, I highly recommend using rockets to hit the faso in its "pile state", ghillie and c4 didnt work at all for me, it notices so easily. Please spread awareness for how obnoxious this thing is to tame.

While taming: Do not try to drive into the middle inner land parts. Stay in the dunes and search for Salt Rock groups. Hold your map open while driving, you can see the areas on it. It is more than 10x faster than trying to hit normal rocks at the dunes edge. Also you will not get dismounted with this way.