USN UH-1Ns were pretty generic as they were general utility helos usually w/out guns. They did have some colorful and interesting Navy paint schemes though.
Shipboard UH-1N (as depicted on box top)

HH-1N SAR

Antarctic Expedition

Unless they offer some USMC UH-1N versions, which usually had guns and rockets, generic is all you will get.
Overall green (70s-80s)

Land Warfare/Mediterranean camo (80s-90s)

Desert Storm UH-1N in unique sand/brown camo


Or sand/grey camo

Or overall sand.

Overall grey (Late '90s-current, Iraq/Afghanistan)

USMC HH-1N SAR

The possibilities are endless if you mark it as a USAF, foreign, or a civilian UH-1N as well.