For convenience and amusement I vote that we (re)move a voice line from Rein and use it as his ult line instead.
Smashing!
https:// gamepedia.cursecdn. com/overwatch_gamepedia/4/4a/Reinhardt_-_Smashing.ogg — a Halloween voice line.
As for Roadhog, well why not give him the same treatment?
After all, he has 2 slightly different grunty things for ulting, 1 grunty thing for friendlies and 1 slightly different grunty thing for enemies.
So keep the enemy grunty thing and replace the friendly line with this:
Push off
https:// gamepedia.cursecdn. com/overwatch_gamepedia/9/97/Roadhog_-_Push_Off.mp3 — which is one of his default voice lines.
Easy peasy, nobody will ever be confused again.
Apparently I can’t use links here. So I didn’t.