What does orange face/character/unit icon color mean?

[Hanzu 10]

Green face icon means character is healthy

Red face icon means character is injured

Orange face icon means...?

I have seen character face icon going orange only once so is it is a glitch or does it really mean some special status?

Edited February 5, 2011 by Hanzu

[SodyM 10]

He has no ammo

[Hanzu 10]

He has no ammo

Oh, nothing to do with health status then as I thought originally. Thanks for enlightening me SodyM. :)