After an extended dropping streak, I treated myself to a small UC top-up for a crate beginning
https://www.scribd.com/document/997376698/Small-UC-Packs-vs-Big-Bundles-What-Works-Better-for-F2P-Players-130897
After an extended losing streak, I dealt with myself to a small UC best-up for a crate commencing, which pretty rewarded me with a rare gun skin.