I have made a detailed guide explaining the complex mechanics of Kappa, a mission that despite being old and popular still isn't entirely understood by the community at large : r/Warframe
Where To Farm Kappa Beacons? - Players helping Players - Warframe Forums
Sedna | WARFRAME Wiki | Fandom
Beacons (Prosecutor) | WARFRAME Wiki | Fandom
Kena: Bridge of Spirits Gameplay Walkthrough - Kappa Boss Fight - IGN