The Plasma Pulser was a Photos burst-fire plasma weapon developed around the time of the Great War. The burst fire was added as a redundancy measure; many Zeront creatures were very difficult to kill in a single shot, and came in droves. The whole idea was for a few squads of Troopers to be able to accurately fire on an advancing swarm of Zeront and thin their numbers off enough to force a retreat by the time they got within their comfortable combat range. In most cases this worked well, with the lesser strains dropped with a single burst and the raw volume of fire put out by merely three squads, fifteen Troopers, armed with these. Against hardier foes, however, flaws became frighteningly apparent. The ability to fire a three shot burst came at the cost of individual shot strength and against tougher foes it became nigh impossible to do any notable damage with Pulsers.
In spite of these flaws, the Pulser saw the Photos faithfully through the war and for a short time after, before the introduction of the modern Plasma Rifle as the standard weapon. While it was retired for a long time, it was reintroduced in the third generation of infantry weapon development, with a much modernized upgrade. While the normal infantry were well established with their rifles and carbines, the lightweight and accurate Pulser was excellent for scouts, allowing them to function without being encumbered by a heavier weapon.
Old, original “0 Generation” Pulsers are still around, most being display pieces in a museum or the home of a veteran.