B.O.W Tyrants

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All tyrants have two things in common(unless stated other wise). an exposed heart, and standing 8ft tall, 3ft long claws (usully on left hand)

[Evil Ash]

ProtoTyrant T-001
The Proto-Tyrant was the predecessor to the T-002 Tyrant. Standing over 250cm tall, the Proto-Tyrant could deliver enormously powerful attacks with its huge body and claw-like digits, easily rendering instant death to anything it targeted. Although it resembled the finished Tyrant model greatly, it was mentally unstable and lacked higher reasoning. Moreover, the Proto-Tyrant's body decayed significantly, due to an overabundance of the T-Virus. As a result, the Proto-Tyrant couldn't be used effectively as a B.O.W. and was scheduled to be destroyed.

Tyrant T-002
The T-002 Tyrant was the first truly completed Tyrant model (appearing in the original Resident Evil). Developed within Umbrella's secret Arklay Laboratory under the Spencer Mansion, improvements over the Proto-Tyrant include virtual invulnerability to small arms and better reasoning abilities, along with longer talons. Although the T-002 model appeared wild, in reality, it could obey orders quite well.

Thantos Tyrant T-003
The second of the three Tyrants was Thanatos, who was released by Greg Muller, a renegade employee of Umbrella who was against mass-production of the Tyrants. The events in Resident Evil Outbreak showed just how powerful and agile the monster was; in fact, it successfully destroyed an entire U.B.C.S. unit effortlessly.

Mr.X T-103
Colloquially known as Mr. X, the Mass-Produced T-103 Tyrant first appeared in Resident Evil 2 and has also made appearances in Resident Evil: Survivor, Resident Evil Outbreak File #2 and even a brief cameo near the ending of Resident Evil 3: Nemesis. It is the only Tyrant model ever to be mass-produced by Umbrella. These Tyrants were produced on Sheena Island by infusing hosts with Beta Hetero Nonserotonin extracted from children; without this treatment, only one in ten million normal humans would accept the T-Virus and become a Tyrant. The T-103 has a far more human-like appearance than the other Tyrant models, although it still stands out, due to its inability to speak and its great height. The T-103 can recover from injuries faster than the T-002, due to high metabolism and extremely efficient cellular self-repairs. Furthermore, the T-103 is equipped with a "limiter" inside its defense coat, which is used to force it to follow orders...

Nemesis T-004
The Nemesis model is a T-103 type that has been implanted with a new breed of parasitic organism known as NE-a. Despite this, it has enough differences between the standard T-103 model to be considered a different creature from the regular T-103 (and other Tyrants, for that matter). It was ordered to kill all the remaining S.T.A.R.S members.

Hypnos T-005
In its initial phase, when protagonist Ark Thompson first encountered the Tyrant, it appeared as a genderless, hairless youth posessing claws for digits in its preservation tank. Once it awakened, the Hypnos Tyrant proceeded to kill either the Umbrella commander of Sheena Island, Vincent Goldman; the sewer janitor, Andy Holland; or the UT Commander, depending upon the scenario path selected. The creature, however, sustained sufficient damage from its battle in the hallway with Ark, thus, transforming into its more aggressive second form, which included massive talons upon its left hand and an enlarged mandible. After further damage, the Hypnos Tyrant then transformed into its final form, which seemed to be more of a regression than an evolution; in essence, it became a hunched, primate-like being with an elongated tongue and razor-sharp talons, losing much of its former intelligence during the mutation. Also, the beast suffered from hypertonia, thus, its muscles were excessively large, rendering it vulnerable to gunfire.

Tyrant 078
The Tyrant model deployed in Umbrella's Military Training Facility located on Rockfort Island for special forces training. It has no official model number, but it's often known as the T-078 (based on the label that appears over its capsule). This model is actually a variation of the T-103 model, having its limiter removed and its claw-studded hands changed into club-like fists, but otherwise, it is similar to a standard T-103 and has roughly the same attack power. Unlike many other Tyrants, this model did not possess a weak spot of any kind (for example, an exposed heart).

Tyrant 091
Possessing tentacle-like digits on its hands, this Tyrant was fought by Bruce McGivern of Resident Evil: Dead Aim on the Spencer Rain just moments before its sinking. Thanks to its tentacle-like fingers, as mentioned earlier, it has the ability of striking from quite a distance away, but what it lacks is speed. Furthermore, the creature possesses an exposed tumor upon the posterior of its cervical region, which proves detrimental to it in battle...