I'm posting this here even though the most egregious examples occur in Deathwatch.
So for example, there are several tyranids with dedicated weapons with ROF -/-/10 or even higher in some instances. However they only have a BS of around 35 to 40 or so.
Unless I have a deeply flawed understanding of the mechanics, I dont see how those creatures could ever get more than about have that ROF even with a 01 roll. I mean even if you stack some favorable to hit modifiers to get it to around 60 BS or so, that still only accounts for about half the ROF in hits.
So if that is the case, what is the point of creating dedicated weapons with ROF 10 and higher on creature platforms with low BS?
How do you ever land 10 of 10 hits or higher in some cases?