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
Piloting skill plus careful fuel and ammo routing across scripted missions.

Optimization · Practiced Mastery
Lara raids Siberian tombs in a stealth-action adventure heavy on puzzles.
Nuclear Strike leans Execution (Practiced Mastery); Rise of the Tomb Raider leans Optimization (Practiced Mastery).
Nuclear Strike leans a little harder on execution, though the gap is small.
Nuclear Strike
Helicopter piloting and aimed strafing under fire demand steady hands
Rise of the Tomb Raider
Bow aim, stealth timing, and platforming sequences.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Nuclear Strike
Enemy emplacements follow fixed scripts
Rise of the Tomb Raider
Guards follow predictable patrol scripts.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Nuclear Strike
Map layouts are unknown on first pass only
Rise of the Tomb Raider
Tomb unknowns dissolve after one visit.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Nuclear Strike
Managing fuel, ammo and mission routing is the real layer
Rise of the Tomb Raider
Tomb puzzles, crafting, and collectible routing are solvable.
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.