User blog comment:Kabutsu/Assassin's Creed IV Setting Ideas/@comment-4631135-20121119062811

Benito could be one of the main antagonists, and he could be assassinated in a time skip to 1943 while trying to escape on the train. I think they could bring back the parachute from previous games. Also, an upgraded hidden blade (One that could be used like a rope dart and be used to latch onto tanks and other vehicles).

You could drive certain vehicles and sneak assassinate from the doors of the vehicle, and place the corpse inside the vehicle to make it look like a crash. Machine guns couldn't be used in normal gameplay, but could be used in kill streaks and counter attacks. Grenades and other explosives could be featured as well. Guards could wade through water, climb trees, and use deead bodies as human shields.

Side missions could include: The death of lesser known commanders, gathering supplies for troops, and sending recruits to deal withproblems around World War 1 Europe and Asia.