I’m happy to help you with your query, but I couldn’t find any information related to Rangers refusing to play in a Russian war zone or David Murray risking a mega UEFA ban. It’s possible that this story is fictional or hasn’t been reported yet.

If you’re interested in learning more about Rangers FC or UEFA regulations, I’d be happy to provide information on those topics. Alternatively, if you could provide more context or details about the story you’re referring to, I might be able to help you better.

Here are some possible areas I can assist you with:
– Rangers FC History: Rangers have a rich history in Scottish football, including notable matches against international teams.
– UEFA Regulations: UEFA has rules and regulations governing European football competitions, including those related to player conduct and club participation.
– Football News: Staying up-to-date with the latest football news can help you stay informed about current events and developments in the sport.

Let me know if there’s anything else I can help you with.