So I gave up on using the "Expert Gamers Pad".  I dont see how anyone could game with that and be good.

So I went out and bought a Logitech G510.

There are all these cool buttons to the side, but no profile for BO or BF3.

With that being said, what is everyone else doing with their macros?

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I only used my macros for warning players in CoD:BO.  As far as BF3 goes, I don't really have a need yet.  Maybe I should surf the web for some ideas.

Okay well since I have never used this before and have no clue, if you want to type a message using the macros, what do you use for your cmd line?

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I use the Razer Black Widow Ultimate keyboard with dedicated macro buttons.  I can record keyboard actions or program them in the taskbar application.  I don't actually use command line.
I'd suggest visiting the forums for the manufacturer's website.  Maybe there is a forum or thread to help with macros.

http://forums.logitech.com/t5/G-Series-Gaming-Keyboards/bd-p/gserieskeyboards