Yes, the proportions are explained in more Jalop-compatible terms with this picture.

Imagine seeing this flying past you at 100 MPH faster then your P-51 could ever hope to go.

Seriously. "Diplomacy? We have nuclear fucking missile trucks. "

I think I've come up with the most terrifying weapon in history, and for the longest period of time.

Assault Breacher Vehicle?

iraqveteran8888's Mall Ninja AR-15

Mark 47 fully automatic belt fed grenade launcher with integrated laser targeting system, thermal targeting and ballistics computer with programmed airburst capability. Because you can pretty much put a 40 mm grenade in someone's chest, through a window, in the middle of the night, from a mile away and splatter them…

WWII Sherman tank with mine flail.

With all dem optics though that knife will be as accurate as hell.

A morning star is pretty god damn sinister if you ask me. The barbaric head was effective, but unlike a sword it was not meant to induce a quick death. A morning star was meant to crush your opponents with absolute physical brutality. And unlike its chain-linked cousin the flail, a morning star has no disconnect…

I always thought tanks with minesweeping plows looked menacing.

That's an assault knife.

Am I mistaken or is the only actual weapon there the knife/bayonet?

I agree with the Mk1 & later tanks, like this Mk4. I always thought they looked like pure evil on wheels tracks.

A10, The gun that thought it was a plane.

Flame thrower.

I'm sure many pants were crapped when they saw this coming at them:

Scariest in action, or just sitting still? Technically it was never operational, but the T28/95 concept tank designed for taking out bunkers and pillboxes along the Siegfried line looks kind of scary.