I was just flying around mam the island and then i find him on peaceful island i attacked him with my pteranodon with 1000 hp an he just only one attacked me and... Pteranodon-350hp i was like I WANT THAT TITAN!!!
Can be killed with 2 high lvl gigas mate boosted. Our 2 highest gigas have 225% dmg and melt titans in about a minute. Official server.
Just stay away from the back leg stomp as it can enrage a giga quickly due to speed of attack.