I've been stuck for a while on "caesar's challenge" and stopped playing SP levels. However, I just read a previous update makes skipping levels possible. From the update:

"This update also now adds the ability to skip levels if you’re having a hard time with them. If the app detects that you’re struggling with a level, it will ask you if you want to skip. You can always come back to a skipped level in the future."

Has anyone been able to skip levels? What were the circumstances? I've started the level multiple times now and surrendered right away, but i've never gotten a level skip option. Is it time spent on level?

See this thread in the help forum: https://www.warzone.com/Forum/372298-new-single-player-updates-skip-level.

thank you. i don't know how i missed this thread