Seriously, don't get in their way.
The Mexican drug wars have been heating up once again and the resulting violence is particularly gruesome. At the same time, the cartels need to not only guard their business interests, but also the products themselves and the gunmen who transport it. Hence the use of Los Monstruos tanks, essentially homemade armored tanks that not only transport men and cargo, but are also heavily armed with machine gun turrets. And yes, they often have a massive metal plow at the front end for border dodging and other forms of mayhem.