[hughprime]

It obviously can't do very much to a truck, but I wonder what it would do to a human. Nothing very good, obviously, but how long would you need to keep it focused on someone before they dropped down, brain cooked? (I can't help but notice that the beam is approximately head-sized).

I wonder if a reflective helmet would be a decent countermeasure (or, dare I say it, a tinfoil hat?)

[baguasquirrel]

You could, but then you'd be prancing around the battlefield in a very visible shiny thing. They wear camo for a reason.

[TrevorJ]

It could be a second layer under an ablative layer of camo.

[dustingetz]

that thing looks like it would disable you with major burn injuries with a 50ms pulse.