Quite. Lasers are good for quick acquisition in close quarters. Not useful at distant targets because bullets don't follow long straight lines. A sniper would use a regular optical scope. And they don't get cold feet. :-)
They show that laser dot in movies all the time though, 'cuz it shows up nice on screen and makes for better drama.
Also a rangefinder and a laptop. Muzzle velocity, weight, distance and prevailing wind direction/speed are plugged into the laptop. You are told how far off-target to aim at that very long distance, over 2-3k feet. There are several trig and physics equations combined into a single algorithm program that solves the variables. It takes 2 people. And you can't buy it.
We met these guys in the Mojave desert about 5 years ago using it. Clearly military guys from the AFB 15 mi away. Just nicknames used. I was out then. That .50 set up for that task was impressive. That big scope was impressively boresighted. I shot it on direction from the spotter. Not bad off 6" from 2200'.
I only got to shoot after telling them specific places I was while in. And descriptions of where I was while in. I told them not to tell me what they do, since I dont have that attachment to my clearance. Those guys were not of low rank for the Commander to allow them to borrow the gear for practice in that desert. We never saw them 5 years ago:) And we never met them after saying goodbye in that desert, and we didn't see anybody else around while we were there:)
They had the best stuff, though!