head to head
Warcraft II: Tides of Darkness asks more than Grand Theft Auto V, and the gap is reads.

Execution · Practiced Mastery
Sandbox crime playground spanning shooting, driving, and a persistent online economy.

Optimization · Practiced Mastery
Classic RTS that polished Warcraft's formula with naval combat, air units and beloved multiplayer.
Grand Theft Auto V leans Execution (Practiced Mastery); Warcraft II: Tides of Darkness leans Optimization (Practiced Mastery).
Warcraft II: Tides of Darkness leans a little harder on execution, though the gap is small.
Grand Theft Auto V
Driving and shooting demand decent inputs.
Warcraft II: Tides of Darkness
Faster micro across land, sea and air units
Warcraft II: Tides of Darkness leans clearly harder on reads.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Warcraft II: Tides of Darkness
Multiplayer scouting wars and build feints
Warcraft II: Tides of Darkness leans a little harder on variance, though the gap is small.
Grand Theft Auto V
Some mission and lobby randomness.
Warcraft II: Tides of Darkness
Fog of war conceals enemy tech and armies
Warcraft II: Tides of Darkness leans clearly harder on optimization.
Grand Theft Auto V
Heists, money loops, builds learnable.
Warcraft II: Tides of Darkness
Refined build orders and upgrade timings are studyable
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.