Secure container Gamma - The Official Escape from Tarkov Wiki
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 Get Kappa Container In Escape From Tarkov - YouTube
Everything About Secure Containers in Escape From Tarkov
Kappa Secure Container (How to Get?) - Off-topic - Escape from Tarkov Forum
Everything About Secure Containers in Escape From Tarkov