I think the easiest way to make lasers much more useful is to simply switch them to use the pistols, long arms, and heavy weapons skills respectively, as there's no real need or logical reason to give them their own skill.
I'd also consider improving (possibly doubling) the bonus that they get from using laser sights and smartgun systems, since there's no longer a need to calculate lead or bullet drop; where you're pointing is where you're hitting.