Add a Camera attachment to guns as an alternative to the Laser. Some people (me) aren't big fans of the Laser attachment, but with it being the only option for that slot you feel forced to use it. My solution is a Camera attachment in the same slot, which makes the spotted enemy marker linger for a longer duration. It could also increase the "radius" of spotting so you don't need to hover over the enemy for as long or as accurately to mark them