head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Practiced Mastery
The template Far Cry: outposts, predators, and a tropical sandbox.

Execution · Practiced Mastery
A cinematic Victorian cover shooter about knights hunting half-breeds with exotic weaponry.
Far Cry 3 leans Execution (Practiced Mastery); The Order: 1886 leans Execution (Practiced Mastery).
Far Cry 3 leans a little harder on execution, though the gap is small.
Far Cry 3
Shooting and stealth fundamentals matter.
The Order: 1886
Standard cover shooting with quick-time events
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Far Cry 3
Pirate AI uses fixed alert patterns.
The Order: 1886
Scripted setpiece enemies
Far Cry 3 leans a little harder on variance, though the gap is small.
Far Cry 3
Wildlife and outpost spawns randomized.
The Order: 1886
Heavily authored, nothing random
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Far Cry 3
Skill trees and weapon mods quickly mastered.
The Order: 1886
Linear encounters, light tactical layer
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.