Secure containers - The Official Escape from Tarkov Wiki
The Collector Tarkov Quest - Find All Streamer Items - Games Finder
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!) :
Secure container Epsilon - The Official Escape from Tarkov Wiki
How To Unlock The Kappa Container (Kappa Changes 12.11) - Escape from Tarkov - YouTube
Kappa Secure Container (How to Get?) - Off-topic - Escape from Tarkov Forum
Escape From Tarkov KAPPA Container Poster Style" Sticker for Sale by ryogm | Redbubble