"Have you ever fought a Tenno?"

The following is a recording log from Corpus Tech Arn after the Tenno raid on the flagship of Executive Clohs Helios.

"Have you ever fought a Tenno? No? Well let me tell you what it's like. You're first clue is the noise. Whether it's a ceiling grate falling or a security alarm going off. No Tenno enters quietly. It's not that they can't, it's more like they choose not to."

"Knowledge is all we have against them. We first identify their Warframe. This one was codename Darkened King, a.k.a. Excalibur Umbra. Seperate recordings have gathered that when a Tenno "leaves" their Warframe, it goes into a state of suspended animation, but not this one. It appears to possess a level of autonomy."

"Their goal is always unpredictable. It could anything. Data, resources, out ships reactor, or some poor soul who drew the ire of the Tenno. We only found out after the lights in our ship went dark. Reactor it was. At least we weren't blowing up."

"I feel sorry for the crewmen who were sent to their deaths. You only just arrived and 30 of your crew mates are dead. You blink and ten more fall before you open your eyes, only to stare down the sharp end of a floating blade, before joining the bodies on the floor."

"So the next time you have a Tenno raid you ship, don't ask how to stop them. Ask what you did to draw their attention in the first place, and whoever judges you for not acting, ask them this."

"Have you ever fought a Tenno?"