Here we see Silver's character Kamy as a Ghostbuster she is the experimental equipment technician, in other words Kamy gets to test out the really cool stuff like the proton cannon. Which she is holding in her paws, it is an upgraded version of the Nutrona Wand but unlike the stranded proton pack which runs on an internal power cell. The proton cannon run on an external power cell canister, the pack the she has on on her back is to amplify the power of the cannon there's also a slime tank attached to it, for shooting slime out of the cannon. Other various equipment that Kamy has is upgraded versions of the ghost trap, ecto goggles and PKE meter.
