COD BLack ops 2 game play help using sam turret in Cordis Die

chicofehr

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Jan 29, 2012
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I just can't seem to figure out how to lock onto the targets. I feel like I've pressed every button on keyboard and mouse and not working. I look at you tube videos and it shows 'locked' on the targets but not for me. what button do i use to lock targets.

Thanks :)