Items needed: Bring a good carno or enforcer (lvl 200+) and I’d suggest 60 tranq darts and two sets of flak. You’ll also need meat, but it tames pretty fast so just kill a mammoth or something in the wasteland and it should be enough. I also suggest bringing a managarmr saddle.

Knockout: when it’s on the ground, hide behind your dino and shoot it in the head (or body if you can’t hit the head, but it’ll take more darts). Your Dino should tank most of the hits. When it jumps into the air, get on your dino unless you don’t like having armor. If your armor does end up breaking, just get on your dino and wait for it to come back down. Your dino won’t get killed very fast by dives or ice if the health is good, so that should protect you. Repeat this until KO’d.

Taming: put a few stacks of meat in the inv and it should only be a minute or two before it’s tamed.