This is the third quest you complete together with Antó, unlocked after finishing the "Recruiting Maroons" quest. To start it, return to the bureau in Kingston and speak with Antó. Shortly after, the bureau will come under attack by British soldiers.
Edward helps Antó defend the Bureau from a Templar attack.
You will not be fighting alone. In addition to you, Antó and some Maroons will participate in the battle. Defeat the first wave of British soldiers who will start running in from various directions. Once you do this, there will be a short break.
Continue fighting the appearing soldiers. Antó will be informing you about subsequent waves.
If needed, you can make use of many supplies that you will find on the tables in the bureau courtyard.
In the final phase, tougher enemies will appear. There will be marksmen on the roofs whom you can kill by shooting with a pistol or by climbing onto the roof and kicking them off the rooftops.
A Brute will also appear.
Once all enemies are killed, a cutscene will trigger in which Antó will reveal the Templar's name to you and promise to help dispose of him, after which this quest will end and the next one will be unlocked - The Commander's Ruse.
