To end the feud of Kabuto and use Nagato as an example.

[End of Days]

If you are referring to Tayuya's genjutsu not being able to work well out doors then you are mistaken, as It worked fine on Shikamaru and there was some distance beween them OUTDOORS.

white rage, muki tensei
Kabuto may have looked impressive in the cave but alot of ninjas will be equally dangerous or more in the cave