I think the replay mod is the best soultion!I think an in-game video recorder would be a good,easy and quick method of recording videos. So practically, everywhere you go, you will have an item in your chest that if you click it, you can screen record/in-game record the video.
Eg. I am in skywars, there is a hacker, I need to make a video as quickly as possible(i have no time to open something like Bandicam or other recording softwares),I go to my inventory, I click the item(whatever really, like maybe a hoe), and I start recording, I record hacker, I go back to my inventory, click the hoe to stop the video and choose to save it or not, then I report the hacker.
I think that if you end the video you should get a tab, where you click to save the video or not to save it.
If you save it, I think it could probably go to the %appdata%/.minecraft/.... Although I'm not sure about this. If not, I think there could be a direct YouTube link, or save it to the direct CubeCraft Games website, whereas in the website, a tab could be written above 'storage', and you could pick the file from there.
I think this would be very efficient, easy, fast, and time-saving. CubeCraft Games could gain a bigger number of reports from people as some don't have recording softwares and others might be too lazy or were too slow; Sometimes hackers/rule-breakers leave the game as soon as you warn them. The more reports the better because it would greatly enhance CubeCraft game play as you most probably won't get angry about the rule-breakers and instead report with ease and proud to do so :3.
I think this is a good idea for making videos with a party, someone not following the rules, and a range of others.
I know this might not be possible but I just really hope it is.
Thanks in advance,
Builderwise
Or Just having your recorder ready like me :D