User blog comment:Serpentaxy400/10 Reasons You Should Be Excited For Assassins Creed IV:Black Flag/@comment-180.200.169.163-20130312114941/@comment-4636255-20130313211838

The Pitcairn mission is NOT sandbx style. There's just two ways to do it. Jump off the flag pole, or run up to him and kill.

The closest any of the sequels got to AC1-style kills were in these assassinations:

AC2 - Emilio Barbarigo - Lots of different ways to kill him.

Most of the other assassinations in AC2 had some element of choice, but not ad much as AC1.

ACR - The Assassin traitor at Masyaf - Altaïr has three possible ways to kill him, and I found two of them.

ACIII - William Johnson - There's no constraint for the kill, except doing it super-fast.

Most kills from ACB onwards were rather linear (the above two mentioned, and the mission for Octavian Da Valois are exceptions ). The ones with potential for choices, had constraints that are major spoilers. The best example is Juan Borgia. There were hundreds of approaches, weapons, kill styles you could use, but they told you the best one right away.