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

Execution · Competitive PvP
Chaotic medieval team melee combat.

Execution · Competitive PvP
Team-based WWII infantry shooter about holding and capturing map points.
Chivalry 2 leans Execution (Competitive PvP); Day of Defeat: Source 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.
Chivalry 2
Weapon swings and parries need timing
Day of Defeat: Source
Recoil control and snap aim decide most firefights
Chivalry 2 leans a little harder on reads, though the gap is small.
Chivalry 2
Feint reads in duels are mind games
Day of Defeat: Source
Human squads shift pushes and holds unpredictably
Chivalry 2 leans a little harder on variance, though the gap is small.
Chivalry 2
Team-fight chaos adds noise
Day of Defeat: Source
Known maps, minimal randomness beyond spawn waves
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Chivalry 2
Loadout and class choices basic
Day of Defeat: Source
Class loadouts and lane control are quickly mapped
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.