Sundjata 5

Does anyone know how to beat Sundjata 5 on hard mode for DE?

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The HD version is somewhat beatable, but what makes it hard in the DE version is that the red's units now scatter periodically when idle, and they even have bombard cannons. They also seem to rebuild their armada faster than usual, thus getting more edge in the water.

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There was this one attempt I managed to blitz the Wonder with my trebs, shortly before red's BBCs and orange mangonels crushed the trebs. Unfortunately after I destroyed the Wonder (which was not easy, took several tries), Kombi Saleh breached my defenses and I was overrun by them.

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What are your strategies?