Not enough units arrived, and the towers weren't built, so I decided not to wait for them and immediately moved to cavalry. Because of this, I couldn't break through to the secondary heroes in the first week, and only managed to do so in the second. I lost one cavalry unit while breaking through, then attacked the lizards that were guarding the passage to the secondary hero and lost.
Not enough units arrived, and the towers weren't built, so I decided not to wait for them and immediately moved to cavalry. Because of this, I couldn't break through to the secondary heroes in the first week, and only managed to do so in the second. I lost one cavalry unit while breaking through, then attacked the lizards that were guarding the passage to the secondary hero and lost.