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
Aim and spawn memorisation through a fully scripted cinematic campaign.

Execution · Pure Mechanics
An on-rails shooter testing raw aim speed against memorised spawn scripts.
Call of Duty: Modern Warfare 2 Campaign Remastered leans Execution (Practiced Mastery); Heavy Fire: Afghanistan leans Execution (Pure Mechanics).
Heavy Fire: Afghanistan leans a little harder on execution, though the gap is small.
Call of Duty: Modern Warfare 2 Campaign Remastered
Aim and reaction carry every scripted firefight
Heavy Fire: Afghanistan
Aimbot literally completes this on-rails shooter
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty: Modern Warfare 2 Campaign Remastered
Enemies spawn and behave on fixed scripts
Heavy Fire: Afghanistan
Enemies pop up on a fixed script
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty: Modern Warfare 2 Campaign Remastered
Set-piece campaign with almost nothing random
Heavy Fire: Afghanistan
Spawns are identical every run once seen
Call of Duty: Modern Warfare 2 Campaign Remastered leans a little harder on optimization, though the gap is small.
Call of Duty: Modern Warfare 2 Campaign Remastered
Learning spawns and cover lines trivialises veteran difficulty
Heavy Fire: Afghanistan
Memorising spawn order is the only depth
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.
full breakdown
Call of Duty: Modern Warfare 2 Campaign Remastered →
full breakdown
Heavy Fire: Afghanistan →