head to head
Call of Duty: Black Ops asks more than Naruto: Clash of Ninja Revolution 2, and the gap is execution.

Execution · Competitive PvP
Cold War-era shooter pairing twitch multiplayer with the cult Zombies mode.

Execution · Competitive PvP
An anime fighter testing substitution mind-games and modest execution in versus play.
Call of Duty: Black Ops leans Execution (Competitive PvP); Naruto: Clash of Ninja Revolution 2 leans Execution (Competitive PvP).
Call of Duty: Black Ops leans clearly harder on execution.
Call of Duty: Black Ops
Gunfights hinge on aim and reaction speed
Naruto: Clash of Ninja Revolution 2
Cancel timing and sidesteps decide exchanges
Call of Duty: Black Ops leans a little harder on reads, though the gap is small.
Call of Duty: Black Ops
Reading human opponents' positioning and timing
Naruto: Clash of Ninja Revolution 2
Local versus rewards predicting human substitution habits
Call of Duty: Black Ops leans clearly harder on variance.
Call of Duty: Black Ops
Spawns, care packages, zombies RNG
Naruto: Clash of Ninja Revolution 2
Deterministic engine, nothing hidden
Call of Duty: Black Ops leans clearly harder on optimization.
Call of Duty: Black Ops
Class builds, map control, zombies routing
Naruto: Clash of Ninja Revolution 2
Compact movesets are quickly catalogued per character
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.