I very easy way to knock out the giganotosaurus is to find a good area you would like to tame him in then kite him close to the area. Once that is done do a U shape with small metal gateways(no doors required). Put a large bear trap in the middle, kite the giga into the cube and he will get stuck on the bear trap for roughly 10seconds, quickly fly around the giga to the back but nake sure your out of his bite range because it can be deadly, then place the last metal gate closing up the u shape and making it a square . After you finish traping him you need to knock him out from a far distance away for from a qeutzal platform,which i usually perfer. After you knock him out make sure to pump him full of narcs after a minute or two ir he will wake up.

Best way to tame them from my experience on the island is to use metal behemoth gates to make a taming pen. Or to use stone (be aware it may break before you knock it out, so bring spares and get ready to risk life and limb), and shoot from a Quetz platform saddle. Bring lots of arrows, narcs and Kibble (if you're taming solo), and preferably a lot of cross bows or just a high damage journey+ one.

Have 10 stone Dino gates and gateways place 7 leaving enough space for the gigs to walk in have the gigs agri someone while the other person places the gates up the tribes builds on personally owned then the person who built the gates leaves the tribe so the gigs won't agro on the gates and destroy them Good Luck

For any types of severs including primitive plus can us stone gateways/brick gateways/metal gate ways/steel or metal pillars depending on server type with large bear traps after trapped in bear trap giga can not spin meaning a person can place them safely behind trapping in and tranqin' easily after you've down the giga can put wooden foundations with walls n ceilings to protect from other creatures and players

Note concrete and stone can be destroyed by giga but brick steel and metal can not be, and using pillars may be hard not having enough time to place so suggest doing 2sets of gateways then pillars if can obtey resources for these

If you are to encounter this beast you should run no matter what for my friend had full riot gear and he still was one shot if you have a titanosaurus then go ahead otherwise get out of there make sure he is never in close enough range to bite you and he soon loses you that's all I have to say never try to knock him out on foot

Instead of the famous large bear trap and 4 metal gates you can use metal fences and place one wall 3 high on 3 sides but on on the back of the giga place a metal door on the top (instead of the 3rd wall up) and once the giga is in open the door to the inside of the trap and giga cant escape. (If you found it hard to understand then I cant help🤷‍♂️) I have tried it and it works well 👍👍

IF YOU HAVE GOD OR ADMIN CONSOLE in your solo and want to easily tame this awesome creature, I would recommend not completing the hunt giga quest so you can use that to find it. Note that you will have to be within at lease 1 km for the tracking to render. Once you find a giga, if you have a flyer or other tame, park it on a ledge and if using god/admin infinite ammo with shocking tranq it out. Then once it is out and you most likely didn’t bring prime, put regular meat and go kill an argentavis for prime. Once you have enough prime, speed up to 400%. To level up a better giga, when the giga is unconscious put bio tox in its inv and feed it a lot of bio toxin. This will allow you to level the giga without it waking up due to the levels taking torpo from the giga. This method will allow you to get infinite levels. That is how you effectively and quickly tame a giga using god/admin console. Thank you.

If you want to knock it with tranq arrows you need a really op crossbow or bow but with normal ones you need more than 3 people to knock with tranq arrows because tranq arrows can’t catch up with its torpor drain... i had like 400 tranq arrows and a friend carrying me with argentavis end the result after i ran out of tranq arrows was just 0 torpor best way is to trap it and shoot