head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Execution · Competitive PvP
WWII team shooter blending aim and squad tactics.

Execution · Competitive PvP
The original class-based capture-the-flag shooter built on Quake movement.
Battlefield V leans Execution (Competitive PvP); Team Fortress Classic leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Battlefield V
Bullet drop and recoil punish sloppy aim
Team Fortress Classic
Conc jumps, rocket aim, grenade timing demand sharp hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Battlefield V
Flanks and squad play reward map sense
Team Fortress Classic
Human defenders adapt chokes and offense routes constantly
Battlefield V leans a little harder on variance, though the gap is small.
Battlefield V
Vehicle spawns and chaos create swings
Team Fortress Classic
Open maps, little hidden information beyond flanks
Battlefield V leans a little harder on optimization, though the gap is small.
Battlefield V
Class loadouts and fortifications optimize holds
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.