head to head
Call of Duty: Black Ops asks more than International Superstar Soccer Pro 98, and the gap is execution.

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

Execution · Competitive PvP
Football execution and human mind-games layered over tactical formation play.
Call of Duty: Black Ops leans Execution (Competitive PvP); International Superstar Soccer Pro 98 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
International Superstar Soccer Pro 98
First-touch timing and finishing demand practiced hands
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
International Superstar Soccer Pro 98
Versus matches hinge on outguessing a human defender
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
International Superstar Soccer Pro 98
Bounces and deflections add bounded match chaos
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
International Superstar Soccer Pro 98
Formations and set-piece routines have learnable best answers
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.