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
A co-op third-person shooter built around two mercenaries juggling enemy aggro together.

Execution · Practiced Mastery
Ballistic compensation and patrol memorisation along heavily scripted stealth corridors.
Army of Two leans Execution (Practiced Mastery); Sniper: Ghost Warrior leans Execution (Practiced Mastery).
Sniper: Ghost Warrior leans a little harder on execution, though the gap is small.
Army of Two
Cover shooting and co-op timing
Sniper: Ghost Warrior
Accounting for wind and drop on long shots demands steady aim
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Army of Two
Aggro system is mappable, not adaptive
Sniper: Ghost Warrior
Enemy AI runs scripted patrols, not adaptation
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Army of Two
Scripted setpieces
Sniper: Ghost Warrior
Wind values add per-shot noise to compensate for
Sniper: Ghost Warrior leans a little harder on optimization, though the gap is small.
Army of Two
Weapon upgrades and aggro manipulation
Sniper: Ghost Warrior
Learning patrol routes and stealth paths solves each level
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.