I know that ET kinda always had problems with hitboxes and hit registration (and it can look even worse in replays) and I will go off-topic here but yesterday I had a funny/sad situation and its about hitboxes anyway.
https://streamable.com/wux7fb
Im not the best aimer by any means but sometimes I feel like on top of it I get cases like this where you feel you should hit but don't and they are not so clear to see like here in the video. As I said I always thought in ET situations like that are rather common place and I was fine with it, because I love this game anyway but I just wanted to share :p