Post flight briefing

Is there a file or a menu that shows post flight, after DCS closes, certain mission's actions/ statistics other than TacView?

Like a table of content with time, ammunition dispensed, times, targets hit, etc.

There is a debriefing screen in Singleplayer, displaying just what you were talking about. Not applicable for MP

Unfortunately it doesn't show why a mission containing specific goals failed, which seems a bit of a strange omission. (Goals like 'don't enter The Container', or 'dodge 1-1 must not get shot down' etc).

same issue

I don't think there is an easy way to create a full, pretty briefing, but I believe it's possible to script some kind of statistics window between the mission end conditions and the actual end of the mission. I'm definitely not the person to write that, but I bet there's something out there that could come close to what you're after.

As far as goals failed/succeeded, MOOSE tasking already has some of this built in and it's pretty intuitive. There is a pretty developed scoring system too. See if that sounds like a start. Just a thought.