Surprisingly easy....if you have the patience and the materials that is, otherwise it's just pure stress. Tamed a lv10 on mobile within argy, about two stacks of tranq arrows, a mastercraft crossbow, one soothing balm and one piece of prime meat. You don't actually need the metal gates as they say. The wiki has got a ton of viable methods but the easiest one is still climb a rock. More specifically the gigantic rock at the southern edge of the north-west snow biome on the island. I've seen two gigas spawn there and it's rather easy to lure them to the giant rock and start tranqing away. You need to have the giga on the side close to the edge of the map and slightly higher up the mountain than u would be if u walk off the rock. It works since there is a lower point on the rock that allows a giga to think ur in range when ur in fact too high to be bitten and so will keep attacking instead of running. When it's topor get high, (i recommend bringing a spyglass and check it's torpor occasionally and be prepared）When It turns and flees, hop back on your argy(or quetzal or griffin if u have one.) Then give chase. If your position was right the giga should get no more than a few steps before getting stuck on the mountain ridge. (It only worked on the second try for me so save ur progress before tranqing!) Then it's just a matter of a few more shots and u can get on to taming. (Bring soothing balm, if u don't have one then bring plenty of narco berries to cope with the giga's lightspeed torpor drop.)
I dare you to raise one!! They are savage if you got two high lvl parents (about lvl 140ish) and you get imprinting on it. The thing will become an adult with about 230% melee and basically one chomp any bronto!!! But on the down side you loose your job and your girlfriend
5)Your KO weapon (most recommended are ascendant longneck rifle or ascendant crossbow).
6)Your KO ammo (bring a decent amount).
7)Taming food of your choice (most recommended is raw prime meat or kibble if you can).
8)Decent amount of narcotics or bio toxin.
FIND GIGA: gigas usually spawn at mountains. On the island try looking around the volcano or the two mountains in the snow area.
SET YOUR TRAP: take 3 of your metal gateways and make this shape \_/ then put a large bear trap or 2 in the middle. It’s easier if you build the trap on flat ground.
TRAP THE GIGA: get the giga to follow you and make it go inside the trap, then make sure it’s caught in the bear trap. When it’s stuck in the bear trap go behind it and complete the trap with another gateway. The final shape of the trap looks like a Trapezoidal.
KO THE GIGA: even a low level giga has a lot of torpor and it drops fast so keep shooting no matter what. It’s recommended for a tribe-mate to help you.
START FEEDING: put the food in the giga’s inventory and keep an eye on it’s torpor.
So for taming a giga in mobile its too ez. There is a giga logic in mobile that it will not aggro on you if you are on a tame (any) and unless if you hurt them. So just use a argy, sit under its feet literally and put the metal gates around it and trap it. And then get a distance of atleast 30-40m and start tranqing it. BTW after trapping it, i will recommend to sleep then knock it out after waking bcz it will be starving due to trap logic (only works in mobile). Then put the balm and prime. Boom it will tame instantly due to starving and we dont need to get worried for its torpor drain. Thanks me later...
I was looking to metal to make a saddle then I said to my brother “i am going to tame a giga” as a joke. Not even 10 seconds later a level 55 giga came into view. KEEP IN MIND WE ARE ONLY LEVEL 40!! We are gonna tame it tomorrow with arrows since we don’t have tranq darts😂 wish us luck!