As large as these things are, encountering them is actually kind of rare because only a couple of them spawn in on the map at a time, if you do for some reason decide to fight it though I think at that point it’s time you just let natural selection do it’s work, cause unless you’re on a wyvern or a heavily imprinted giga with a stupidly good saddle or something, you and your tames are gonna die to this thing if you decide to attack it for some reason, seriously, do NOT attack a titan on foot