ΔE 9.9, close: similar, with a visible difference side by side. Bronze Brown is a little darker, more muted than Yellow-Brown Ops.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Bronze Brown is a little darker, more muted than Yellow-Brown Ops.
The same difference applies the other way round: Yellow-Brown Ops is a little lighter, more saturated.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Yellow-Brown Ops on the colour wheel See Bronze Brown on the colour wheel
All matches: Yellow-Brown Ops equivalents · Bronze Brown equivalents