About the turbo knife, don't forget about the tac knife .
And I guess if you're good at trickshotting, making macros for some of those, or even a 360 quickscope
EDIT: Oh yeah, and I'm not sure of the timing, or I'd make one myself, but a rapid YY turbo tap thingy. So you could play dead, coincidentally, I was just playing MW2 and ninja defusing by tapping YY in search ;3