head to head
Command & Conquer: Red Alert 2 asks more than Team Fortress 2, and the gap is optimization.

Reads · Grand Arena
Cold-War base-builder where tight production queues and superweapon races define competitive play.

Execution · Competitive PvP
Class-based team shooter with deep mind games.
Command & Conquer: Red Alert 2 leans Reads (Grand Arena); Team Fortress 2 leans Execution (Competitive PvP).
Team Fortress 2 leans a little harder on execution, though the gap is small.
Command & Conquer: Red Alert 2
Superweapon timing and unit grouping require practiced multitasking
Team Fortress 2
Projectile aim and rocket jumps reward hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Command & Conquer: Red Alert 2
Opponent faction and rush timing must be scouted and predicted
Team Fortress 2
Spy/sniper duels are pure prediction
Team Fortress 2 leans a little harder on variance, though the gap is small.
Command & Conquer: Red Alert 2
Map layout is fixed; very little hidden RNG in unit behavior
Team Fortress 2
Random crits and spread inject RNG
Command & Conquer: Red Alert 2 leans clearly harder on optimization.
Command & Conquer: Red Alert 2
Build queues and power grid management are highly optimizable
Team Fortress 2
Class loadouts and map routes solvable
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.