“The name’s EVA.”

EVA’s story is one of deception, loyalty, sacrifice, and survival. She was born sometime in the 1930s and raised in a time of deep Cold War tensions. Early in life, she was recruited into espionage work by Soviet intelligence, specifically the KGB. Intelligent, resourceful, and fearless, EVA mastered a wide array of spycraft: infiltration, deep-cover assignments, seduction-based intelligence gathering, and field operations. Unlike many operatives of her time, she could move seamlessly between roles, languages, and personas, molding herself into whatever her mission required.

Training and Skills

EVA was trained at the famed "Chinese People's Liberation Army's North Vietnamese Training Center", where she studied combat tactics, disguise, survival, and infiltration. She specialized in the use of disguise and firearms, and became a motorcycle expert — a skill she would later put to great use in her field missions. She learned how to survive in hostile environments, pilot various vehicles, and adapt to changing battlefields. Unlike brute-force operatives, EVA’s power was her adaptability, her cunning, and her willingness to use her beauty and charm as weapons just as dangerous as any firearm.

Mission in Tselinoyarsk – Operation Snake Eater (1964)

EVA first entered the saga during the events of Metal Gear Solid 3: Snake Eater. In 1964, she posed as a KGB agent sent to support Naked Snake (Big Boss) on his mission in the fictional region of Tselinoyarsk, in the Soviet Union, where Snake was ordered to stop The Boss and prevent a nuclear catastrophe. Using the codename Tatyana, she infiltrated the area pretending to be Sokolov’s lover.

Her cover story claimed she defected from the People’s Republic of China, but in truth, EVA was working as a double agent for China. Her real mission was to secure the Philosopher’s Legacy, a massive fund of hidden wealth controlled by the shadowy organization known as the Philosophers — the predecessors of what would become The Patriots. The Legacy represented not only financial power, but political leverage that could shape the future of the world.

EVA aided Snake throughout the mission: providing him with intel, equipment, and even acting as a romantic partner to gain his trust. Despite her true allegiance to China, EVA’s bond with Snake grew complicated. She saw in him a soldier who bore the weight of impossible choices, and someone who reminded her of the tragedy of The Boss — Snake’s mentor and EVA’s comrade.

Ultimately, EVA succeeded in her mission: she stole the Philosophers’ Legacy and delivered it to China. However, before leaving Snake behind, she recorded a tape explaining her deception and expressing her admiration for him. Though her actions were manipulative, her respect and perhaps even affection for Snake were genuine.

Life After the Legacy – The Patriots’ Shadow

After Snake Eater, EVA’s life was consumed by the fallout of her actions. China never managed to harness the Legacy as intended — much of it was fake or unusable — and EVA’s efforts only deepened the dangerous political web surrounding her. Over the years, she remained in the shadows, connected to The Philosophers and eventually to Zero (Major Zero), who founded Cipher, the precursor to The Patriots.

Her relationship with Zero was complex. While she worked with him during the early formation of The Patriots, she later grew disillusioned with his vision of a world controlled by an AI-driven system. Where Zero sought control through information, EVA still believed in human will and freedom. This ideological rift would eventually fracture the Patriots, splitting figures like Ocelot, Sigint, and Para-Medic into different camps.

The Mother of Revolution – The Sons of Big Boss

One of EVA’s most defining moments came when she became the surrogate mother of Big Boss’s genetic legacy. Using in vitro fertilization, she carried the cloned offspring of Big Boss: Les Enfants Terribles. These clones became the future legends of the Metal Gear saga — Solid Snake, Liquid Snake, and Solidus Snake.

EVA raised none of them, but she considered herself their mother in spirit, especially to Solid Snake. Her maternal role tied her fate inexorably to Big Boss’s legacy, and by extension, to the wars and tragedies his name brought forth.

Return in Metal Gear Solid 4 (2014)

By the time of Metal Gear Solid 4: Guns of the Patriots, EVA was an elderly woman, going by the codename Big Mama. A leader of a resistance faction in Eastern Europe, she fought against the oppression of the Patriots’ AI network. Even in her advanced years, she remained cunning, commanding, and deeply committed to preserving Big Boss’s ideals — or at least, her interpretation of them.

When Solid Snake (her “son”) arrived in 2014, EVA revealed the truth of his origins, his connection to Big Boss, and her own role in his creation. Despite her fading health, she still wielded her charisma and iron resolve, leading a desperate battle to protect the remains of Big Boss from falling into the Patriots’ control.

Tragically, her devotion led to her end. During the battle in Eastern Europe, EVA sacrificed herself to shield Snake and her allies, dying in the flames — fitting for someone who lived her entire life in the fires of revolution, deception, and loyalty.

Legacy

EVA’s life was defined by contradictions: she was both a deceiver and a truth-teller, a mother and a soldier, a patriot and a betrayer. She loved Big Boss yet betrayed him, she gave birth to the clones that would bring down the system she despised, and she lived her life in pursuit of freedom while constantly shackled by the strings of greater powers.

Her story is essential to the entire Metal Gear saga, as she is not only a key to understanding Big Boss’s fall and rise, but also the maternal figure behind the very soldiers who shaped the future of the world.

Content Warnings: Violence, death, foul language, and her backstory. User discretion is advised! I also want to preface that Metal Gear Solid takes place in a historical fiction version of our actual history. It’s basically an alternate history version of the Cold War and therefore is not accurate to our timeline.

(Art is from Metal Gear Solid Delta: Snake Eater by Konami)

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I've hit context but I want to continue my Rp! Am I out of luck?

•   No my friend, you're not! You just have to do a little bit of surgery.

•   This is the chat transplant method:

•   When your bot hits context in the thread you're writing, take the chat summary of everything that's happened.

•   Remember this should be the highlights.
  Think of it like a DBZ recap "Last time on Dragon Ball Z..."

•   You're going to paste this into a new chat with the same bot.

•   Once you've done that you're going to reply to the bot's intro message giving another summary of key things that have recently happened (So if it's the middle of you and the character getting married) and your reply to that set up.

•   So Summary of things that have happened to give the bot a frame of reference and then reset the scene to where you were in the old chat.

•   This works pretty well! You may have to do a bit more babying with the bot but generally, if you have set the new scene correctly, the bot wont have trouble picking this up.

•   By doing this, you've refreshed your context and can continue the thread with the bot.

^ Thanks to m00nprincess/FunFatale for this!