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 gleefully violent 1997 Build-engine shooter starring undead gunslinger Caleb.

Execution · Practiced Mastery
Plannable stealth routing punctuated by precise ballistic marksmanship.
Blood leans Execution (Practiced Mastery); Sniper Elite III leans Execution (Practiced Mastery).
Blood leans a little harder on execution, though the gap is small.
Blood
Fast Build-engine combat demands aim and dodging
Sniper Elite III
Ballistic long shots demand steady, compensated aim
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Blood
Niche multiplayer only; campaign enemies are scripted
Sniper Elite III
Enemy AI follows mappable alert and search routines
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Blood
Some enemy spawn and hitscan unpredictability
Sniper Elite III
Patrol details and wind vary slightly per attempt
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Blood
Secret hunting, weapon economy, route knowledge
Sniper Elite III
Open maps reward planned routes, sound masking and relocation
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.