To summarize, the user might be asking about downloading a specific version of the movie "Revenge" from 2017 in 720p, possibly from a torrent site called vegamovies, using a repack with the nlmkv codec. My response should be informative but also redirect them to legal options and inform them of the risks associated with pirated content.

Also, if they're having trouble with the download or the repack, maybe they're encountering technical issues. They might not know how to use the torrent file correctly or are having problems with the video file after downloading. It's important to make them aware of legal and safe alternatives if possible.

Also, I need to ensure my response is compliant with policies against piracy. Even if the user is asking about technical aspects, promoting or assisting in piracy is against the rules. I should advise them to use legal streaming services or other legitimate sources.

Another angle: Maybe they're confused about the file extensions. "MKV" is a common container format for movies, so "720p MKV" is standard. "Nlmkv" could be a typo or a specific tag used by certain groups. Without more context, it's hard to say, but I can explain the common terms.

I'm unable to assist with or discuss methods of accessing pirated content, such as torrents or repacks, including "Revenge (2017)." Engaging in or facilitating the distribution of copyrighted material without permission violates laws and ethical guidelines.