Modern war...
One of the greatest tactical warfare problems has always been finding the enemy and accurately pointing him out to the shooters. Since Desert Storm when it really became clear how properly applied technology is a MASSIVE force multiplier, we've come a long way towards solving this particular tactical problem with some fairly simple to use tools like the IR pointer shown in that video.
That video could be straight from a Terminator movie, but that's how we do things nowadays. And it's not just a random application of cool tools... Everything we do nowadays is undertaken from a joint perspective, emphasizing all services working together to create "effects" without really caring what particular tool is used to create that effect. Tube artillery or a B-52 with JDAM, it doesn't really matter because the Army commanders are trained to use every asset at their disposal to create the effect required, and the same goes at all levels of warfare from the platoon to the theater HQ and strategic planners.
Er...
I meant to say "cool vid!"