Wups, mea culpa. Sorry about that! Here's the revised version of those three sections (and I rearranged the former "strengths" into the abilities part, as well as made sure that it all would have fit in the original one comment):

● abilities:
Synthetic human: Her flesh and blood and fibers are cloned from a “father” and “mother”, Dr. Lucas Coffey and Undine Stransky, making them biologically related by all counts. She is, first and foremost, designed for combat. Not only does her organic cybernetic physical composition make her more durable than a normal person, the immortal cell line of her father (also known as the Cleary cells) have provided her with accelerated healing. These cells make her immune to sickness and disease, as well as aging. She also has a high pain tolerance, allowing her to take most types of heavy damage that would kill a human.

Brísingamen: Energy stored within Rey’s body, imprinted into her chest, and supplies her bionic physiology with the energy to function. Her skeletal structure is made up of fervidium alloy, a type of glowing metal that heats up once activated by the Brísingamen. This energy can unleash heat particles from the vessel, generating enough to cause a person to burst to flame. When activated it takes on the form of neon red veins pulsating through the parts of the body Rey is applying the energy to, which can occasionally cause her skin to secrete a dripping, oily, extremely hot substance. Basically, she’s a walking powerhouse. This also grants her an immunity to fire and extreme hot and cold temperatures: Other than manipulating her own body heat, she is capable of feats from cauterizing wounds to igniting flame. When angered to the point of raw fury, she can even breathe smoke.

Samandrine: Utilizing the Brísingamen at its fullest capacity results in her skin heavily secreting a black, oily substance that has been dubbed samandrine. Think of this substance as the oil that keeps a lantern lit. It can coat her body from head to toe to prevent her from being identified as well as produce a stronger fiery effect. Samandrine can be extremely toxic when ingested, resulting in temporary paralysis. However, with some sciences applied it can result in quite an intense hallucinogenic effect.

Military experience: Training exceeds well beyond that of your typical soldier. Her skills range from firearms to melee weapons and close-quarters combat. Her specialty lies with sniper rifles, handguns, and combat knives, as well as disarming her opponents. Like many in the military, she also has some knowledge of basic first aid. It should also be noted that Rey now carries the knowledge of nearly a century’s worth of combat experience. Her lives spent as highly skilled snipers, soldiers, and special operatives carry over to her present vessel.

Built Ford tough: With superhuman endurance and equilibrium, Rey’s keen sense of movement allows her to be heavily skilled in being able to travel through environments via rolling, dodging, vaulting, and climbing. She has a significantly higher strength than the above average human, which can be obvious from her well-toned physique. As mentioned above, Rey also possesses a bionic physiology, placing her at approximately 140 kilograms due to the alloy she is made of.

Bablefish: Multilingual as a result of her now-merged identities. Fluent in English, Spanish, Zulu, Dutch, German, Russian, Italian, Arabic, and Hebrew.

● strengths:
Never gonna give you up: While careless with her own life, the well-being of others is another story. What could be construed as a need for redemption and maybe even hypocritical, Rey goes above and beyond to help others, both physically and sometimes emotionally. Because of her own history, she is quick to identify certain self-destructive patterns in other people. This compels her to reach out, which can turn into something more possessive and overly protective. If she perceives someone as “weak” (or less capable), she treats them more delicately. However, if she understands the strengths and capabilities of another, she wouldn’t hesitate to push you off a cliff if she knew you could survive it. It’s okay because she has faith in you — and Rey’s faith can be pretty dangerous.

Never gonna let you down: Abrasive that she can be, Rey does care... maybe too much. She just tends to convey that emotion in the form of tough love. And when she feels love, it is very strong. In return, she does not appreciate full on sympathy from others, neither does she seek emotional comfort in anyone if she can help it. Rey is willing to listen, to reach out, and be there for those she cares for or relates to, often with little judgement, and can be arguably nurturing at times.

It is because she had been such a victim of her own circumstances, having little control over her life, that she values autonomy above all else. After all, allowing one the chance to choose for themselves is the most important thing in the world for someone who had been robbed of such freedom for most of her many lives.

● weaknesses:
Being human: Despite her tough-as-nails attitude, Rey does not have a good handle on her emotions. She is prone to violent outbursts and mood swings and a colorful language that would make a sailor blush. Even worse, she is more liable to express anger over fear, at the risk of being seen as weak.

Because of her lifestyle, she has a hard time understanding some of the most basic societal norms, as she has very limited experience with social outings. This has led to a lack of worth as a person, and to a fault when she puts the lives of others above her own (which is both as much a strength as it is a weakness). Though she is usually quick to act, her decisions are often brashly made and harmful to herself. She’s a hypocrite in that she cares deeply for the people that she loves (even though she’ll try not to ever use that word), and yet she has absolutely no mind for her own health. She has been willing to die without considering how such a thing would affect others.

Trust is also a hard thing for her to come by. She’s brutally honest, and tends to be candid about herself and what she thinks. Actual trust, to her, is when she’s comfortable enough with someone to divulge emotions, and when those emotions come out they can be pretty unpredictable. In truth, Rey is more emotional than she lets on, hence why she prefers to hide them under a crude guise.

Furthermore, she might express a strong mistrust and disdain for synthetics/robots/the like, due to the role that they played in her world. It is a prejudice that has cause some rifts in the past, and thus she struggles with.

Fragments: Due to having the memories of several soldiers crammed into her head, Rey suffers identity issues. A lot of them. After a while when she starts to remember some things, she has difficulty differentiating between which one is her own, and which ones were fabricated and programmed into her head. Because of this, she might get various details of her backstory mixed up, be they real or not. The details may be so subtle that it should take a perceptive individual to notice it. Be it a flaw in her coding or post-traumatic stress, Rey’s mind is shattered, with different pieces that she fights to hold together.