Tamed one today, here what you will need

100 narcoric-More depending on level (check dododex)

4 normal metal dino gateways (Metal behemoth gates work to but normal metal gates are cheaper it will just take longer time to trap. And large bear trap.

Exceptional kibble

Lota of tranqs 300 or more

Steps

Make a u shape out of the gateways but dont perfectly connect them, give a bit of space on the edges. Also only place 3. And inside put a large bear trap.

Lure giga in (i recomend with flier) it will take a couple attempts.

once it in the giga will be stuck for ten seconds. Quickly as possible place the fourth one so its stuck but try to be careful to it could manuever out, if it does, on singleplayer cloae the game it will load a previous save. ( Hopefully not to far back) and try again. Once trapped tranq until asleep and wait for it to reach 1k or 2k torpor and feed it ALL of your narcotics available. And put the kibble in its inventory and leterr eat. You should now have tamed giga.

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