You can actually tame a Carno pretty easily if you have the right items in Ark: survival evolved (at least on the Nintendo switch). The items I used are:

1-crossbow

2-narcotic arrows

3-raw meat

4- Beelzebuffo

Step one

Mount your Beelzebuffo and shoot the Carno with your crossbow and narcotic arrows from a good distance away

Step two

Jump away from the Carno about two times on your Beelzebuffo and turn and shoot it

Step three

Repeat step two until Carno is knocked out

Step four

But raw meat in the Carno’s inventory and wait for it to tame

Hope this helps! -Even Steven