head to head
Desert Strike: Return to the Gulf asks more than Red Dead Redemption 2, and the gap is optimization.

Execution · Practiced Mastery
Helicopter handling under fire while routing fuel and ammo across fixed missions.

Execution · Practiced Mastery
A cinematic open-world western leaning on shooting feel and atmosphere.
Desert Strike: Return to the Gulf leans Execution (Practiced Mastery); Red Dead Redemption 2 leans Execution (Practiced Mastery).
Desert Strike: Return to the Gulf leans a little harder on execution, though the gap is small.
Desert Strike: Return to the Gulf
Helicopter inertia and dodging fire demand real stick control
Red Dead Redemption 2
Gunplay and Dead Eye reward aim and timing.
Red Dead Redemption 2 leans a little harder on reads, though the gap is small.
Desert Strike: Return to the Gulf
Defenses are fixed emplacements, nothing adapts
Red Dead Redemption 2
Enemies use scripted AI patterns, not adaptation.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Desert Strike: Return to the Gulf
Maps are unknown on first sortie only
Red Dead Redemption 2
Some hunting and weather randomness, lightly hidden.
Desert Strike: Return to the Gulf leans clearly harder on optimization.
Desert Strike: Return to the Gulf
Fuel, ammo and mission-order routing is the strategic core
Red Dead Redemption 2
Loadouts and routes solvable but loose.
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.