head to head
Hogs of War 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
3D Worms-with-pigs artillery strategy with squad classes and silly voices.
Grand Theft Auto V leans Execution (Practiced Mastery); Hogs of War leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto V
Driving and shooting demand decent inputs.
Hogs of War
Arcing grenade and bazooka shots by feel
Hogs of War leans clearly harder on reads.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Hogs of War
Human multiplayer rewards predicting opponent moves
Hogs of War leans a little harder on variance, though the gap is small.
Grand Theft Auto V
Some mission and lobby randomness.
Hogs of War
Wind, scattered crates, and damage spread
Hogs of War leans clearly harder on optimization.
Grand Theft Auto V
Heists, money loops, builds learnable.
Hogs of War
Class promotion and turn economy decide campaigns
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.