In Left 4 Dead 2, using a defibrillator is a great way to revive a downed teammate. Here’s how to do it:
First, make sure you have a defibrillator equipped. You can find them in certain campaign levels, or you can purchase them from the in-game store.
Once you have a defibrillator, approach your downed teammate and press the "use" button. This will bring up the defibrillator interface.
Now, simply press the "shock" button to revive your teammate. They’ll be back on their feet in no time!
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