I was happy to see another ground set for Season 6 and got all the pieces earlier today only to discover that the Compressed Cryo Launcher Icon picture show a cool looking gun but the actual ingame gun is just an Antiproton Pulsewave like the original poster mentioned. Here is a link with the icon picture:
The armor colors kind of match the picture for the Crystal-Woven Environmental Suit so it seems like someone forgot to give the proper gun as the Compressed Cryo Launcher for the character to use. The gun in the icon picture looks great and would fit well with the MACO, Omega Force and Honor Guard guns so hopefully this was just a small oversight and someone pathed the gun we are supposed to see to the wrong source.
It's only true for Energy Weapons in space. On the ground it's only for the Pulsewave Rifle. Pulsewave Rifles will do massive amounts of damage at pointblank range. But the damage drops off rapidly with range.
Think of the Pulsewave Rifle as a shotgun. It's up close and off with his face weapon.