Have 2 people. One person carry the sabertooth with the argy or if you want, quetz/wyvern. The other person tranqs it. The saber will stay still, allowing head shots with the right positions, both saber and the shooter. The saber will fall from the from being carried to the ground when unconscious. This way, you can tame the sabertooth in your base or where ever you want/need.

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