Age of Empires II: Definitive Edition

You start with enough resources, but not unending or insane amount of resources. Begin by booming like mad - I built about 4 TCs at each starting location. One on gold, the berry bushes, woodlines, stone, etc. Start exploring from the west to find the walls and the river for Constantinople, then follow it south west to the edge of the map. Send a few vills there to build a market, then have them walk back north to the trade market there and drop a few more. Que up about 10 vils in each TC.

Drop a castle right on the shallows to the east of your west force and stables (for Hussar spam) and siege workshops (no trebs this scenario, so you're going heavy on bombard cannons). Build another castle just north of your western base because eventually enemies will start to come from that area.

If the northern markets have finished building, que up trade carts and they'll start pulling in 35-50ish gold a trip, depending on exactly where you built your southern one.

You can go entirely by land if you want, I did - no ships at all, but after it was done I saw 2 gaia fleets, one north east and one just west of your east base, that you could use. There will be enemy reinforcements that come by sea at one point, having a navy might make it easier.

Anyway, you've boomed like crazy and have 100+ farmers on land and 50 or more trade carts minimum, you have 500 pop space so don't worry about your normal eco levels, go crazy. I built up about 30 bombard cannons and a few control groups of hussar and jannisary, startknocking down the gates and go in. Take out the army buildings since I think that's what causes the defenders to spawn. Trade gold for Stone and keep droping Turk bombard towers/castles and work your way in. Constantine is at the northern X in the base, he's a chonky cav unit near a castle while the Hagia Sophia is protected by a few more of the long range towers and God's Own Sling hero treb at the central X. I cut through the center to the Sophia first and then turned north, just remember to keep your Hussar spam up as a meatshield, jannies for DPS output, and enough BBC to one-shot any building and gate.