Why not just upload the clips when you think it's lag/latency.
I've yet to see a clip that proves to me it's actually a big issue of EU players on US servers. Like where shots are obviously just flat out not registering... The only interesting clip I've seen was someone posting a 6 shot "perfect" kill with a pistol but I noticed that happens to me sometimes too. The game registers the shot, the enemy flinches like they take damage, but yet they don't... It's weird. But it's not a "shit I'm a disadvantaged EU player" thing.
There are plenty of clips in this Halo Waypoint thread: https://www.halowaypoint.com/en-us/...eu/a65cf801-460d-49f5-abcc-4b172f736b3a/posts
Also this is not something that can be disputed or for which we need to submit evidence. It is a scientific fact.
If you are American and you play on Europeans servers, the European players on that server will have a ping advantage over you. If you are European playing on American servers, the American players will have a ping advantage because your signal has to cross the Atlantic ocean before it gets to the server.