head to head
Command & Conquer 4: Tiberian Twilight asks more than Red Dead Redemption 2, and the gap is reads.

Optimization · Practiced Mastery
Tests class counter knowledge and objective control with lighter economy than classic RTS.

Execution · Practiced Mastery
A cinematic open-world western leaning on shooting feel and atmosphere.
Command & Conquer 4: Tiberian Twilight leans Optimization (Practiced Mastery); Red Dead Redemption 2 leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Command & Conquer 4: Tiberian Twilight
Unit micro and crawler repositioning under pressure
Red Dead Redemption 2
Gunplay and Dead Eye reward aim and timing.
Command & Conquer 4: Tiberian Twilight leans clearly harder on reads.
Command & Conquer 4: Tiberian Twilight
Class picks and feints against humans reward prediction
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.
Command & Conquer 4: Tiberian Twilight
Little hidden beyond fog of war
Red Dead Redemption 2
Some hunting and weather randomness, lightly hidden.
Command & Conquer 4: Tiberian Twilight leans clearly harder on optimization.
Command & Conquer 4: Tiberian Twilight
Class counters, population caps and objective control are studyable
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.