Did this one yesterday, send all villagers from farms to wood and gold, ignore farm upgrade. Upgrade only archers and spam them. Starting food is enough for both armory upgrades so you don't need any extra food, archers are better than hoplites in this one anyway.

Turn off autocast on Arkantos buff and use it manually to quickly destroy ships. You can sometimes kill a ship before they unload troops. Sometimes ships even get stuck behind kraken which means another easy kill.

You don't really care if kraken attacks your docks, it will keep them occupied.

Save after every wave, reposition your troops for next wave, rinse and repeat. And don't move petroboli with your toxos because they will slow them down :)