I have to say I did take this question seriously. I somehow managed to overlook the part with 180° arcs. Everything else seemed legitimate. Somewhat better arcs, and quick turning, at the cost of losing the scope zoom and of reduced damage. The damage might have to be reduced further after testing, but it seemed like something that could be worked with. Also, there was an actual mercury discussion recently in the experimental crew discord, so the fact that this poll was being asked seemed to follow logically from the fact that better mercury arcs were legitimately discussed not very long ago.
I was going to vote no, but after some thought, it seemed like something that would actually be useful to players and that I could see myself using. So I voted yes in the end.