I don't remember the name of the scout tank. The first vehicle you research and produce is what I'm talking about. The one that appears to have armor made out of tin foil.
If you equip it with the pulse laser, then each time you go to fire it, it defaults to the accuracy setting used by the most recent soldier. It does not allow you to cycle between snap-standard-aimed with the right mouse button the way the soldiers can.
The clunky work-around for this is you go to a soldier first, then select the accuracy setting you want to use for the tank, then go back to the tank and it will default to what you picked for the solider.
Hope that makes sense.