More of a weapon concept than anything else, but...
"The AEZ, or Ambient Energy Zorcher, collects zorch energy from the general environment, allowing for a squad member to take down flemoids regardless of the amount of zorch cartridges they have on their person. Teleporter usage will cause this device to charge at a far faster rate, due to that having the effect of adding to the ambient energy in the general area, although said zorch energy tends to dissipate fairly quickly normally."
Basically a zorcher that regenerates its ammo slowly over time, while getting a boost to its charge if a teleporter is used nearby. Probably would be fairly powerful against Archvile Equivalents, as those would probably be turned into Summoners that use Purple Zorch to summon flemoids.