I do largely agree. Focus would be much more beneficial in a game like black ops where it takes more bullets to kill. Not to mention the lag in this game turns most guns into the sniper rifle when it comes to getting hit and reacting. I do like Focus on the MK 14 and sniper rifles because usually I'm far enough away it takes the opponet more bullets to kill, so its advantage is better utilized.

yeah, i'm an MK-14 user, and I was thinking of doing breath the next prestige just so I can get marksman pro, sice I don't really use sniper rifles too often. but I didn't think of flinch for it, as well. I normally use the multiple attatchments, because I keep the RoF increase as a just incase measure. But I might try the focus one sometime, but I agree. it was probably more meant for mid-long range assault users.

I'd say for single or burt fire weapons its used more.

I use Focus on my ACR setup.  I used to think it was silly until I tried it out for a couple days.  Now I can't live without it.

With Focus, you win far more gun battles than you normally would.  In situations where the opponent gets the drop on you, you're pretty much dead.  No profiency is going to help you there.  But when you and the opponent both spot each other at the same time, you should be able to get at least one shot on your opponent (unless they one-shot you with a headshot, QS, shotgun blast, etc).  When you do, you should be able to land the majority of your next few shots since you barely flinch.  Your opponent, one the other hand, will be spraying the sky before they die.

I've been in plenty of gun battles that I felt I should've lost, but won due to Focus.  And I'm sure my opponents were raging like crazy afterwards.