Why spend your valuable time exploring every nook and cranny in Mass Effect 3 for conveniently dropped weapon upgrades when someone on the internet has already do it? The videos above (and below) reveal the best hidden of the upgrades needed to make your trip through the galaxy that much easier and much more explosive, and they're worth checking if you plan to play the game to completion.
Courtesy of PlaystationWorld, this 25 minutes of footage will be a godsend if you just can't resist the lure of having every single weapon at its peak. From knives to scopes, everything you'll ever need is waiting to be found, tossed aside by oddly careless people who can obviously afford to dump important pieces of equipment for any old person to pick up. And it still makes more sense than finding shot gun shells in long-abandoned catacombs in Tomb Raider.
Be sure to keep popping back as you play to ensure that you don't miss a thing in Mass Effect 3.