Building comparison
head to head
Halo 3vsTeam Fortress Classic
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.
Halo 3
Execution · Pure Mechanics
Trilogy capstone whose equal-start arena multiplayer defined a console generation.
Team Fortress Classic
Execution · Competitive PvP
The original class-based capture-the-flag shooter built on Quake movement.
Halo 3 leans Execution (Pure Mechanics); Team Fortress Classic leans Execution (Competitive PvP).
Halo 3Team Fortress Classic
Axis by axis
Execution8 vs 8
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Halo 3
Precision aim and grenade-melee timing
Team Fortress Classic
Conc jumps, rocket aim, grenade timing demand sharp hands
Reads5 vs 6
Team Fortress Classic leans a little harder on reads, though the gap is small.
Halo 3
Equal-start fights reward predicting humans
Team Fortress Classic
Human defenders adapt chokes and offense routes constantly
Variance2 vs 2
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Halo 3
Equipment pickups and spawn variation
Team Fortress Classic
Open maps, little hidden information beyond flanks
Optimization5 vs 4
Halo 3 leans a little harder on optimization, though the gap is small.
Halo 3
Power-weapon timers and map control
Team Fortress Classic
Class picks and map routes are learnable but shallow
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.