Quote Originally Posted by Cabbage Patch View Post
The Bradley is classified as a lightly armored vehicle, but it is on the heavy end of that spectrum. When it was designed it was meant to protect the crew against hits from the Soviet Union's light caliber weapons; it was supposed to be "impervious" to the heavy machine guns (12.7mm and 14.5mm) and "protected against" the light cannon (23mm and 30mm) on their infantry fighting vehicles. Later generations added protection against High Explosive Anti Tank (HEAT) rounds, which are the type of warhead used in anti-tank rockets and missiles.

In combat Bradleys can hold their own against Soviet era tank (depends on who shoots first), artillery fire and small arms. They've proven very vulnerable to buried mines and Improvised Explosive Devices, and, apparently, very sharp fingernails.
Ok. I got a pretty good idea of what the soldiers are using to go toe-to-toe with the Little Ones/Advanced Little Ones outside of Ft Irwin. I just pulled up this episode to see what Puck said when Michael asked what was going on. At 19:09 Puck says "They figured out how to tear into the tanks" so I'm making the assumption that the enemy is either going under the vehicle or exploiting some top side weak point.

Of course, there is the possibility that these creatures are hard/strong enough to get through the armor you just described but that seems more far fetched.