How were the Crusaders able to capture Constantinople in 1204 while the Ottomans had difficulty doing so with a far less populated city in 1453?

by [deleted]

I can think of a few reasons, like Ottoman forces not being designed to conduct a siege, inept leadership during 1204, and just-repaired walls. But apparently the Venetians managed to scale the sea walls during 1204. How did they do so?

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*Alexios Strategepoulos* *Sneaks Into the City*

jfarrar19

Do we know if there was a significant difference between the sea walls and the "land walls" (the walls facing the land, rather than defending against ships)?