head to head
Call of Duty: Black Ops asks more than Medal of Honor: Warfighter, and the gap is execution.

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

Execution · Competitive PvP
A military shooter testing aim with moderate prediction of human opponents online.
Call of Duty: Black Ops leans Execution (Competitive PvP); Medal of Honor: Warfighter 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
Medal of Honor: Warfighter
Gunfights reward aim in both campaign and multiplayer
Call of Duty: Black Ops leans clearly harder on reads.
Call of Duty: Black Ops
Reading human opponents' positioning and timing
Medal of Honor: Warfighter
Human opponents in multiplayer demand positional prediction
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
Medal of Honor: Warfighter
Spawns and engagements add modest unpredictability
Call of Duty: Black Ops leans clearly harder on optimization.
Call of Duty: Black Ops
Class builds, map control, zombies routing
Medal of Honor: Warfighter
Class loadouts and map knowledge form a thin layer
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.