found a nice guide on the interwebs the other day and i thought hmmm this i need to try. So we tried this tactic and got it right the 2nd try (had alot of other tries with different tactics before that and we always got overwelmed before the end)
Here is the link (Credit goes to OsamaDeep)http://forums.ageofempiresonline.com/forums/thread/113228.as...
The only thing we did different was that we made no siege units and the greek guy had all his units(horsies) at 2 spots (the most right ones) and the egypt one at all his elephants on the spawn spots on the upper part and the bottem part.
We both had alot of barracks/fortresses up for fast unit spawning.
The only thing that you need to take care of is that your towers can hanlde wave 4-5 and that you got your units ready to stand on the spawn spots BEFORE wave 9-10 (when the golden sieges come)
i (egypt) had around 30 farms for food, 20 caravans 10 villagers on gold or stone and 10 on wood.
After that just keep your population at max and when you got enough resourches kill some villagers.
i hope this helped :>