Easiest way to tame is probably to take an Argie, a grappling hook, a longneck, and a LOT of tranq/shocking darts. One person flies the argie above the gigs, the other person hangs below and shoots. If you have enough people you can have multiple chasing it from the sky and shooting, making the whole process go faster. Then, just guard it’s fine give it narcs and wait, and your tribe now has a giga