No pattern conceals equally well everywhere. [contrarian]
This may have solved logistical problems of production and distribution, but it also caused our troops to sometimes stand out when they were supposed to be blending in. After all, the solution with mice was two colors, not one, and the reality of diverse combat habitats is that no one pattern blends well in all places.
Emlen, Douglas J, Animal Weapons_ The Evoluti…, loc. 41