From my knowledge, the earliest Navy Soldiers quest that doesn't take place on Port Royal would be defeating four Navy Cadets in the Wildwood on Tortuga, which I seemed to have been able to accomplish on my own just now. If I am misinterpreting the quest that you are actively on, please open your Journal using the
J key and let me know the actual title of the quest that you have marked, like so:
Otherwise, if you are still having issues with defeating these Navy, remember that Pistols
can NOT be used on human opponents such as Navy/EITC, and shooting at them will not damage them. Finally, if nothing else has worked up until this point, I would recommend switching oceans via hitting the
M key and clicking on the drop-down box above the Caribbean's map, shown here.
Sometimes, the AI of a specific enemy can be a little bit wonky, however, this may be corrected by teleporting to a different server.
Fair Winds,
Misha