I do that a lot too. Thanks to the information overload we live in, I regularly bail out on what I'm playing just to look at my mailbox/db/chat/whateverdingle. Heck, it's gotten to be such a habit that I immediately get annoyed with any game that doesn't sport a pause feature - although this usually isn't a problem since I avoid multiplayer and online games like the plague; everything else almost always has some way of pausing the action.
Quote: Originally Posted by M1GU31
think mw3 doesn't let you on purpose so you don't try to death evade, that's my educational guess
How would tabbing out help you evade dying in a game? Either the game auto-pauses, so when you tab back in you'll still get killed, or the game runs in the background when you tab out, so you'll still die but you just don't see it and when you tab back in you'll be staring at a game over screen.