Re: laser rifle
Tactically, any weapon which reveals the location of the shooter is undesirable.
A laser weapon would be unreliable and would probably be exorbitantly expensive for little or no gains.
Special forces would never use such a weapon because it would attract return fire very easily.
It's a nice gimmick for a movie or a weapon for space perhaps - which is where I think its designers probably expect it to find use.
SDAI-Tech1