head to head
Tom Clancy's Splinter Cell: Conviction asks more than Zombie Army Trilogy, and the gap is optimization.

Execution · Practiced Mastery
An action-leaning stealth entry where aggressive optimal clears replace pure ghosting.

Execution · Practiced Mastery
A co-op horde shooter testing sniper aim and chokepoint planning against scripted waves.
Tom Clancy's Splinter Cell: Conviction leans Execution (Practiced Mastery); Zombie Army Trilogy 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.
Tom Clancy's Splinter Cell: Conviction
Mark-and-execute flow rewards quick, accurate play
Zombie Army Trilogy
Long-range sniping and horde kiting demand steady aim
Tom Clancy's Splinter Cell: Conviction leans a little harder on reads, though the gap is small.
Tom Clancy's Splinter Cell: Conviction
Enemies search via scripted last-known-position logic
Zombie Army Trilogy
Undead waves follow predictable spawn scripts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Tom Clancy's Splinter Cell: Conviction
Mild uncertainty in enemy search behavior
Zombie Army Trilogy
Spawn timing varies a little between runs
Tom Clancy's Splinter Cell: Conviction leans clearly harder on optimization.
Tom Clancy's Splinter Cell: Conviction
Encounter rooms have clear optimal clear orders
Zombie Army Trilogy
Choke points, trap placement and ammo economy reward planning
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.