Osu players can attempt a song hundred of times in a run, having individual video files would make highlights much easier to grab for youtube videos

When an event happens, outplayed can auto record immediately before and afterwards. This includes raids, zzzt, meteors.

If i complete a hard level, it would be very cool to capture that and show it my friends.

Could be used to capture the moment that one of your beloved pawns dies

In grounded, it would be nice if it could auto clip boss kills, spider kills, bug kills, deaths, and revives.

so you can relive the fights without jumping through a long video

Auto capture events for overtakes/good defending and maybe fastest lap.

For Hell Let Loose, I wish I could save vehicle kills, multi kills, longshot kills, and destroying enemy outposts/garrisons.

Auto capture of battles, as they are the most interesting part of the game.It could greatly reduce amount of space required, because most of the game is spent in campaign view.

It is useful for evidence or just to show off :)