Just don't go hunting in the swamp alone (Hopefully this is common sense). If you bring a decent raptor it'll destroy the sarco and even a carbonemys can do it on land. It isn't that hard to engage unless you're in the water. If you do fight it, just be aware of you're surroundings. I got attacked by two titanoboas once while fighting it. Didn't end well. However, my raptor killed all three of them by the time I got back. That's why I say raptors are great for mid level players going on a hunting trip.
If u see one of these go kill it or tame it they are a pain if they are on your island I have had these constantly spawn right where I live but thankfully I set up a nice spike wall along with watch towers be careful around these AND KEEP YOUR DINOS AWAY I learned my lesson already when it took down my first Dino my otter called cuddles.... please click up to pay respects.....
my dodo (lvl 4 at the time, thought he was dead until i whistled my other dinos to follow me) was apparently in the direction of the sarco (lvl 5). he walked right into the sarco and i was convinced he was dead meat. until the sarco’s corpse just flew into the air. man, that dodo was a trooper
If you want to find one, go spawn in south 2 or go to the southern islets, they are like everywhere, I’m taming one right now, her name will be dismal ( like the Great Dismal Swamp) and she is brown on top and green on the bottom.