Thorian creepers

Introduction
The thorian, a plant creature has the ability to control many followers through the use of genetic mutation and pheremones, none are so disgusting as the creepers, unlike the general thralls that the thorian will enslave, the creepers seem to have been "built" by genetic material harvested over the many years of the thorian's existence. they are sick beings which will attack anyone not under the direct control of the thorian hive mind, they are the mass effect version of zombies, well, more so than the geth husk zombie beings,

Information
The creepers are generally 5"10' in length, are green/brown in colour and are composed of what seems to be an amalgamation of plantlife and human form, it could be speculated that the thorian created them in a human image using the genetic material that it had, so the people that it harvested could be literally recycled into making these creatures.

When they are in proximity to something or someone which is not controlled by the thorian they will advance towards it and attack in one of two ways, they will either cover you in their caustic genetic matter, by means of being sick all over you, or will initiate some kind of amazing high tech jujitsu move... where they learned that is anyone's guess, it is possible that the thorian will gain some of the abilities and understanding of the creatures which it harvests, meaning that if it were to absorb a marksman and the creepers were to get hold of guns, then the creepers would, theoretically, be able to use them with the same efficiency of the marksman who was absorbed, it is yet to be discovered if the thorian really did absorb a jujitsu master or not.

Facing a Creeper in combat
Because facing the creepers is much like the zombie stage on many great games (like the flood on halo for example) it is always useful to have a shotgun on hand, not only will this allow you to hurt multiple creepers at the same time, the carnage ability will almost instantly rip a thorian apart, well, it would but because bioware was aiming for a BBFC "12" rating they will simply explode into a pile of green goo, which is most likely the genetic matter used to create the horrid things.

Creepers will also fall after eating about 5 seconds of assault rifle fire, you will most likely overheat your AR after 1 and a 1/2 of them have fallen, this therefore is only useful in retreat situations where your shotgun is overheated.

A pistol shot to the head would kill most things, but the creepers, being only imitations of life do not suffer this weakness, being shot anywhere will do roughly the same amount of hurt, however concentrated pistol fire should take about 3 out before your hand cannon overhats.

Finally the Sniper rifle, the most hated weapon in multiplayer games now finds it's own little degree of uselessness in mass effect! If you have read the halo novels then you will know that when you fire a sniper rifle into genetic mass with no nervous system, then you are just plain stupid! A sniper rifle will do about enough damage to take a creeper down to half health, then you will have to wait about 3 seconds for the gun to be cool enough to fire a second round, which by that time will not have the desired effect because the creeper has already regained enough health to survive the second shot, meaning that you have to wait another three seconds to plant a third shot which should kill it, by the time you have done this, all of it's friends will have woken up, murdered your team and carried you off to the Thorian, not good!

Also, the creepers will roll into little balls when not active (they will come alive when their controlling node is damaged), in most games this would be considered great as you would be able to kill them before they awoke, however in Mass effect, they are completely invulnerable when not active and even function as de facto cover! useful when under fire, but scary when what you are hiding behind wakes up and decides to spray you with genetic goo.