I like to imagine that they always move in packs with mental links. When one of the group is damaged or killed, the rest in the pack will gain resistance to the means that killed that one, forcing you to mix up attacks to deal with them effectively.
A product of Reaper nano-technology,the Gargoyle is created from a Vorcha. Whilst similar to normal human Husks,Gargoyles are faster and more agile,being able to quickly run up to opponents to slash at them with their claws and dodge incoming projectile fire. As well,Gargoyles are very acrobatic,regularly leaping across great distances and jumping up to great heights. An additional ability that remains from their previous life as Vorcha is their extremely high cell growth due to their hyper-concentrated stem cell base. This natural feature allows them to quickly heal any damage sustained if given a few moments. Finally,the Gargoyle can spit a highly acidic liquid in close quarters if its claws aren't enough,and this acid extends to their healing factor,preventing any close-quarter counter methods while they heal by way of acid spray from wounds.
Gathering the Vorcha that littered the terminus systems the Reapers re-purposed them as Special Reaper infantry. Fast and agile on the battle field they climb walls and can leap great distances to get at their prey. When attacking they spit a highly corrosive goo that melts armor and flesh. When sustaining damage they bleed their corrosive goo making them dangerous in close-quarters combat.
That... is arguably the coolest, creepyest and most disturbing thing connected to the mass effect universe I have ever seen.... good lord I would not enjoy having to fight against these things in single or multiplayer.
Hmm, i like you're idea for a reaper vorcha but i envisioned them as fast moving creatures with sharp claws for hard hitting melee damage (sort of like a phantom with their sword but instead of a sword its claws). i also pictured them being able to scale walls and leap about the battle field in an almost feral kind of way, kong vaulting obstacles and extending their legs right out to grab their enemy on the other side
A Gremlin is Husk made from a Vorcha, they get their name from the acidic chemical they spit which cause serious damage to electronics, such as computers and high tech weapons as well as burn organic flesh. The acid is an advanced form of the the acid normal Vorcha spit on their food to make it easier to digest.
Besides the acid, the Gremlins can also use regenerate from the brink of near death and like Vorcha Gremlins will adapt to nearly any situation or environment given enough time. This mean solders must make sure Gremlins are truly dead before moving on, because if the Gremlin is simply unconscious from blood loss they will recover and come back stronger than ever. More than one Alliance Solder has been killed by a Gremlin who they thought was came back after growing body armor.
The Reapers place Gremlins behind enemy lines or in very hostile environments were other husks can not survive. They are sent on sabotage missions, often trying to destroy roads or key tech with their acid spic.
I hope you don't mind me writing this, I just loved it so much not to write about it.