Is the heavy melee hit detection supposed to be this wonky? It reaches further than what the game actually shows, turning the charge a bit seems to increase the range too.
That explains why hitting the wall or the corner on a doorway also counts as a hit. Since the attacker can easily turn then it's quite hard to dodge it sideways.
The parry could be an easy solution to that however even that seems to fail due to latency.
Why not just make the cone more visible in an aesthetically pleasing way?