so you can crush the Army before planting Gaias Seeds. Still very tough though. And you can block off the right Gaia Tree with 2 Forest Spells
At the begin of every Titans Mission, i know i won't make it the first time, cause you have to use a certain strategy from the very first second which you don't know yet. This one got me quickly with the infinite spam of Murmillos. I couldn't even secure the Caravan route in time so i immediately gave up on that. Luckily, my Harbor was spared so at least i could trade food and produced Priests and Anubites with the strategy to enter Fortress and exit on another spot to distract as much of them as possible. And my Guardian was finished just in time. 10 Seconds later and i would have failed. I used Ajax to outrun the Titan while i slammed down the right Town Centre and secured the path with the rest of my tiny army to kill all workers coming from the Top town center and then headed straight into the wasps nest. Later the Titan didnt move anymore so i could slam down everything and rebuilt my bases. These Missions are so tough and yet so fun to play at the same time. OC it is much thanks to sometimes stupid AI but otherwise it would be impossible.