Titanoboa is not passive or knock out tame. Kinda of passive tame but you dont go up to it and feed it. All you need is a ghillie suit, some eggs mainly bigger eggs like rex or medium sized creatures like allosaurus and carnos. Then you have to wait until it tames but be careful whirl taming it. There are kapros, sarcos, barys, and leeches since they only live in the swamp.
You tame them by droping ferti eggs from your inv on the ground. You need to do so when the snake is not aggroed, so sit on a rex or smthing it wont attack. Be sure to drop them from your inventory, not from dino ones, that will make it bugged, it wont eat. To a lvl 20 Rex egg gives 29% on 2x event, bronto 26.7% and giga and wyvern the same, looks like all the big eggs give approxymately the same amount.. so dont waste the best you have ? If they get aggroed on you just run away and return, taming wont drop. Happy taming!
If u are in ark mobile ( like me ) and u want to get titnboa eggs make a small room without a floor pick a female with an argy and drop it in the room and get the eggs (sorry if there was any grammar mistakes)
Get on something big that they wont attack (I use a spino cause they're awesome for swamps) and drop eggs while riding it, the snake will eat the eggs and ignore you. JUST MAKE SURE THE EGGS COME FROM YOUR INVENTORY NOT THE MOUNT