The Armageddon Walker was designed for only the highest ranking military officials of the alien threat. We have studied these machines as much as we can, and our only solution to bringing down the beasts is to fire at its weakest points: the crystals that power the stronger weapons. By destroying them, an overheating and internal meltdown will occur. When this happens, flee from the scene immediately for the explosion with obliterated anything within its radius.
About this creation
Front view. The Walker seats two minor pilots and a general that operates the main gun on top. It fires a strong particle beam which will disassemble the atomic structure on anything it hits.
Back. Fitted with thrusters for when it moves off the ground and to its destination.
Close-up, if not blury, view of the side armaments.
Top view where you can see the general sitting in the back.
The Walker actually walking...go figure :P
It can also stretch out its legs and lay on the ground as a stationary turret. This is also how it appears when it flies; just imagine the lower half spinning.
Underside view. Each leg houses a unique cannon of its own.
Not even the military could stop these monsters. A+ for the guy holding the bazooka with one hand though, good for him.
But these Walkers weren't the only machines brought in the onslaught; they arrived with multiple different vessels to conquer and enslave the earth with.