You were exploring the ruins of a Covenant base. On the wall there was some unrecognizable text, so you ignored it, when you passed the corner you saw something, an alien, it looks menacing and almost barbaric, it also appears to have red like armor and white war paint its face, it also appears to have a weirdly shaped rife in its holster, maybe a needler? You don't know. But then you trip on a rock and fall into view of it.

"You will die human for being in my presence, human!"