You were referring to pro players using macros. I also played CoD4 in the amateur leagues down under (underwhelming in every aspect to be honest), so I know what's allowed and what's not allowed. Getting into the bad habit of using macros for a very simple action is detrimental to game play because you begin to take things for granted. It doesn't really give you an advantage imo; just makes you a lazier player.
11/2/14 at 5:19pm