The fight was proceeding smoothly, but very slowly.
Street fighting required capturing houses one by one, and with several thousand people involved in a melee, it could not progress very quickly.
Yet the Skull Gang gradually but irreversibly advanced from the northeast of Gazaley City. Some buildings had to be fought over several times, but with reserves deployed and the local numerical advantage, even superiority at times, the territory the Skull Gang captured was unlikely to be lost again.
The battle started in the morning, reached noon, and then continued into the afternoon. By that time, the Skull Gang had taken control of one-third of Gazaley City.
Apart from initially participating in capturing four fortified positions—and the defenders were obviously not pirates—the Satan Mercenary Corps didn't engage in combat.