I tamed a level 30 carno everything went fine until a level 30 wild Rex came in my base my carno took it on and won saving my butt. Leveling up melee damage and health as well as stamina to do this. Note: My carno had 175 melee and 1300 health.
If you get a high level, (around 80 or higher) you basically have a low level Rex. Spam the right click if you’re in a risky fight so you can knock the enemies back. Pump stamina, health, and melee if you want to kill alphas. They’re also good for caves.