head to head
Into the Dead 2 asks more than Grand Theft Auto V, and the gap is variance.

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

Execution · Practiced Mastery
An endless-runner shooter testing steering and aim against zombie crowds.
Grand Theft Auto V leans Execution (Practiced Mastery); Into the Dead 2 leans Execution (Practiced Mastery).
Into the Dead 2 leans a little harder on execution, though the gap is small.
Grand Theft Auto V
Driving and shooting demand decent inputs.
Into the Dead 2
Steering and aiming while auto-running drives survival
Grand Theft Auto V leans a little harder on reads, though the gap is small.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Into the Dead 2
Zombies shamble on scripts, no prediction
Into the Dead 2 leans clearly harder on variance.
Grand Theft Auto V
Some mission and lobby randomness.
Into the Dead 2
Spawn placement and pickup drops vary each run
Into the Dead 2 leans a little harder on optimization, though the gap is small.
Grand Theft Auto V
Heists, money loops, builds learnable.
Into the Dead 2
Weapon loadout and upgrade choices reward planning
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.