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

Execution · Practiced Mastery
Patient ballistic aiming wrapped in plannable stealth positioning.

Execution · Practiced Mastery
Planning a kill order and landing extreme-range ballistic shots against scripted patrols.
Sniper Elite V2 leans Execution (Practiced Mastery); Sniper Ghost Warrior Contracts 2 leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Sniper Elite V2
Ballistics-compensated long shots demand steady precise aim
Sniper Ghost Warrior Contracts 2
Aimbot trivialises the long-range ballistic shots that define it
Sniper Elite V2 leans a little harder on reads, though the gap is small.
Sniper Elite V2
Enemy AI runs fixed alert routines
Sniper Ghost Warrior Contracts 2
Enemy patrols follow fixed scripts, never adapting to your tactics
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Sniper Elite V2
Wind and patrol details vary slightly per attempt
Sniper Ghost Warrior Contracts 2
Wind and patrol layouts are unknown until scouted, then fixed
Sniper Ghost Warrior Contracts 2 leans a little harder on optimization, though the gap is small.
Sniper Elite V2
Positioning, sound masking and route planning are learnable
Sniper Ghost Warrior Contracts 2
Planning routes, shot order and contract objectives is half the game
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.