Secure container Kappa - The Official Escape from Tarkov Wiki
Quests - The Official Escape from Tarkov Wiki
Kappa requires Level 71: Confirmed — Escape From Tarkov News
I solved the Kappa problem. Carrot Container replaces it and Kappa is a 71 unlock. Donut because it's hilarious... (Carrot because it's the carrot on a stick to keep people questing!) :
How to Earn the Kappa Container in Escape from Tarkov - Cakeboost Guides