AoE2:DE - Victors and Vanquished - Fetih (1453)

The video shows a quick and easy way to win the level (plus achievement), keep in mind that sometimes the Emperor will cowardly run away to the south when his hp got low enough, so you have to surround him and kill him before he could. As for the Hagia Sophia, I actually forgot to build a Siege Tower to hop the Janissaries over the walls for a quick win, luckily the enemy aggros enough to do it with the heroes.