Right now we’ve got a kill counter, kind of, in the top right corner of the screen which shows kills of specials, elites and monsters and also when we do a serial killing like killing several elites in a short timespan.
I would suggest that we get this also for headshots and perhaps tens of mooks (cultists, Skaven slaves, Norscan warriors, clanrats and other horde foes). So if you score like 14 headshots in a rapid succession you can see it in the upper most corner of the screen along with tens of mooks. Meaning that if you kill five mooks quickly, they dont register, but for every ten set of mooks, 10-20-30-40 etc. in rapid succession you get the pleasure of seeing it in the top right corner.
Its not a huge thing but there’s a certain satisfaction in getting it confirmed that you killed 10 Stormvermin in a single patrol, and for me it would bring more satisfaction to see the mayhem I cause during a run in the case of headshots and scores of mooks.