A tip for newish-players: My Sarco is still only a level twenty-something, by even by level 7, she was killing Titanoboas and kiting megalodons with ease. I can't recommend the Sarco enough as a swamp hunting mount-- and as I said before, ESPECIALLY for Titanoboas. You'll have leather coming in by the hundreds. Just be careful that you go at them head-on, and that you don't take on more than a few beasties at a time. Be especially wary of the Kapro. They'll knock you flat and leave you vulnerable to whatever horrors are crouching in the shadows. Have a pike on hand for those pesky bugs that your Sarco can't reach. And beware, dear reader, the frumious Baryonyx, with jaws that bite and claws that catch. They have a penchant of attacking from the side, making it quite a hastle to get back at them. (At least, from my experiences.) Want to take on other Sarcos with your Sarco? Have no fear. Just get your melee damage up a little bit, and you should be fine.
But as always, tread carefully.