! Because you couldn't buy a 'pack of landmines' -- the only ones in existence came with Tripwire. He brought his landmines to the fight, detected them, and then went home to watch the DIY channel for the rest of the afternoon.
"Everybody hold up! O..okay, no it was nothing. You can go. TO HELL!"
I'm sure mine-sweeping is a very important part of real war, but this is G.I. Joe: The bad guy is half snake, and they're pursuing him in a helicopter shaped like an eagle that fires other, smaller bird-shaped helicopters. Realism is not at the forefront here, and cautious mine-sweeping is probably the last task a ten year old would be interested in. And if they were -- if you had a friend whose hand shot up to call Tripwire every round -- you should call his family to give them your condolences. Because I promise you that he killed himself in college. His family will tell you it was a chemical imbalance, but looking back, you can see it: He just never learned what joy was.
Law came with a German Shepherd named Order, and at first glance, nothing seemed more awesome. The only Assigned Reading book a grade school boy actually read was Call of the Wild, because, to a fourth grader, nothing says 'badass' like being best friends with a wolf or other similarly threatening canine. But Law was another trapdoor disappointment just waiting to swing open: You read his bio card on the back of the box, and you find out that Law was the G.I. Joe's MP.
That stands for Military Police.
"Move along, nothing to see here. Except my fist!