head to head
Call of Duty: Black Ops asks more than WWE SmackDown! Shut Your Mouth, and the gap is execution.

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

Execution · Competitive PvP
Reversal-timing wrestling that becomes a prediction game against humans.
Call of Duty: Black Ops leans Execution (Competitive PvP); WWE SmackDown! Shut Your Mouth 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
WWE SmackDown! Shut Your Mouth
Grapple timing and reversals reward quick hands
Call of Duty: Black Ops leans clearly harder on reads.
Call of Duty: Black Ops
Reading human opponents' positioning and timing
WWE SmackDown! Shut Your Mouth
Versus friends, reversal baiting becomes a prediction game
Call of Duty: Black Ops leans a little harder on variance, though the gap is small.
Call of Duty: Black Ops
Spawns, care packages, zombies RNG
WWE SmackDown! Shut Your Mouth
Mild AI and momentum randomness
Call of Duty: Black Ops leans a little harder on optimization, though the gap is small.
Call of Duty: Black Ops
Class builds, map control, zombies routing
WWE SmackDown! Shut Your Mouth
Move-set knowledge and momentum management are learnable
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.