This time it was a quicker one. I had an idea based on the "Just like old times" quote between Rex and Echo, and then Echo's facial expression following it.
I mean I personally headcanon he was thinking about Fives, and had realized he wasn't there, therefore realizing he had died. But obviously it's up to our own interpretation.. But those were the vibes I got when I first saw it, and still do even now.
Now I'm making a tag to put my video edits under because my blog is hella crowded and cluttered with multi fandom whatever.