Halo*
Multitasking is why I'm able to pwn all o the n00bs
I look at my map pretty much all of the time, and I'm able to use that data to my advantage. In fact, the only time data has led to a disadvantage was when I was experimenting and used the corpse of my AFC ally to determine where the enemy shot him from.
All of my attention went there, and then when I took a step in that direction the fucker came up from down there and shot me first which = death in most cases
There's no such thing as multitasking, but putting focus on some things more than others make you better than other players.