head to head
Fallout: New Vegas asks more than Breach & Clear, and the gap is execution.

Optimization · Pure Optimization
Planning optimal squad loadouts and synchronized room entries against scripted enemies.

Optimization · Pure Optimization
A faction-driven RPG-shooter where build and route planning shape every ending.
Breach & Clear leans Optimization (Pure Optimization); Fallout: New Vegas leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Breach & Clear
Turn-based orders remove any twitch demand
Fallout: New Vegas
Shooter inputs with VATS assist
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Breach & Clear
Enemy AI follows scripted placements, not adaptation
Fallout: New Vegas
Scripted factions and enemies
Breach & Clear leans a little harder on variance, though the gap is small.
Breach & Clear
Enemy positions unknown until breached, then mappable
Fallout: New Vegas
Some loot and crit RNG
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Breach & Clear
Squad builds and synchronized entry plans are the game
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
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.