User blog comment:Damac1214/Back in Black - Call of Duty: Black Ops III teased, reveal trailer coming April 26th/@comment-7712049-20150411013651/@comment-4872910-20150411044855

I think he's referring to how the TTK for both of the Black Ops games are somewhat slower than most IW games (particularly the MW series). They did change it up a bit in BO2, but it's honestly not much of a difference between the BO series and the MW series anyway. Whatever difference they decide to make in TTK, it honestly won't be noticeable. Treyarch tends to pick certain fire rates to use for their weapons (625, 750, 937.5, 1250, etc.) for frame rounding reasons.