I remember them well. Badass all the way. Did a few road runs in a 40mm Duster.

Those are 5 ton diesel/multifuel trucks with cargo beds. I drove 21,000 simulated combat miles in a dump truck version in 1976 in the Wildflecken, Germany area, pulling a 2 ton bolster trailer full of demolitions. I won an award for those miles that year and the 2nd place winner had just over 7,000 miles.

That's the way win. Overscore by a huge amount!

Here is the story of "Brutus"
http://134.198.33.115/atav/birth_of_brutus.htm

Proving once again that in combat, there's no such thing as too much firepower...

IIRC, many vehicles were given such ad-hoc armor and roles before the Normandy break-out. And in the Philippines before Corregidor fell, small boats were given armor and machine guns - 'Mickey Mouse battleships' - so they could support the US Army and Philippines Scouts along the Bataan coast.

When a need calls, it will be answered.

A 2 word phrase impossible to ignore in an open truck:

Molotov cocktail

but the minigun @ 0.30 in would be cool...