Mass Warfare: From the First Contact War to The Reaper War

Series Metadata

Listing Series

• Mass Warfare: Galactic Alliances (Inifinte Warfare/Mass effect xover) Old Version by Dinocon05

  Fandoms: Mass Effect Trilogy, Call of Duty (Video Games)  

  • Mature
  • Creator Chose Not To Use Archive Warnings, Graphic Depictions Of Violence, Major Character Death
  • Other
  • Complete Work

  21 Dec 2025

  Tags

  • Creator Chose Not To Use Archive Warnings
  • Graphic Depictions Of Violence
  • Major Character Death
  • Steven Hackett
  • Nora Salter
  • David Anderson (Mass Effect)
  • Saren Arterius
  • Tevos (Mass Effect)
  • Sparatus (Mass Effect)
  • Valern (Mass Effect)
  • Adrien Victus
  • Urdnot Wrex
  • Mordin Solus
  • Original Turian Character(s)
  • Original Human Character(s)
  • Desolas Arterius
  • Jon Grissom
  • Sean Brooks
  • Original Asari Character(s)
  • Original AI Character(s)
  • Salarian Councilor (Mass Effect)
  • First Contact War
  • Game: Call of Duty: Infinite Warfare
  • Pre-Mass Effect 1
  • Alternate Universe
  • Pre-Reaper War (Mass Effect)
  • Mordin and Valern will Appear due fact they are proably children at time of first contact war

  Summary

  What if the UNSA from infinite warfare replaced the systems alliance. How does this effect the first contact war. How will this effect humanity's diplomacy with the rest of the galaxy.

  Series

  • Part 1 of Mass Warfare: From the First Contact War to The Reaper War

  Language:

  English

  Words:

  20,217

  Chapters:

  14/14

  Comments:

  11

  Kudos:

  65

  Bookmarks:

  25

  Hits:

  4,005

• Mass Warfare: First Contact War by Dinocon05

  Fandoms: Mass Effect - All Media Types, Mass Effect Trilogy, Call of Duty (Video Games), The Expanse (TV)  

  • Not Rated
  • Graphic Depictions Of Violence, Major Character Death
  • F/F, F/M, Other
  • Work in Progress

  12 Jan 2026

  Tags

  • Graphic Depictions Of Violence
  • Major Character Death
  • Hannah Shepard/Shepard's Father
  • Former Aethyta/Benezia
  • Background Castis Vakarian/Garrus Vakarian's Mother
  • Background Rael'Zorah/Tali's Mom
  • Hannah Shepard
  • Shepard's Father (Mass Effect)
  • Steven Hackett
  • David Anderson (Mass Effect)
  • Rael'Zorah (Mass Effect)
  • Han'Gerrel vas Neema
  • General Williams (Mass Effect)
  • Jon Grissom
  • Aethyta (Mass Effect)
  • Benezia (Mass Effect)
  • Liara T'Soni
  • Female Shepard (Mass Effect)
  • Shala'Raan vas Tonbay
  • Daro'Xen vas Moreh
  • Mordin Solus
  • Urdnot Wrex
  • Saren Arterius
  • Desolas Arterius
  • Tali's Mother
  • Tevos (Mass Effect)
  • Sparatus (Mass Effect)
  • Turian Councilor
  • Salarian Councilor (Mass Effect)
  • Castis Vakarian
  • Lidanya (Mass Effect)
  • Irissa (Mass Effect)
  • Garrus Vakarian's Mother
  • Aria T'Loak
  • Ka'hairal Balak
  • Original AI Character(s)
  • Legion (Mass Effect)
  • Orinia (Mass Effect)
  • Adrien Victus
  • Male Shepard (Mass Effect)
  • Henry Lawson (Mass Effect)
  • Miranda Lawson
  • Illusive Man | Jack Harper
  • EDI (Mass Effect)
  • Karin Chakwas
  • Vyrnnus (Mass Effect)
  • Anita Goyle
  • Council of Matriarchs
  • Turian Primarch
  • Samara
  • Zaal'Koris vas Qwib-Qwib
  • Systems Alliance Government
  • Original Mass Effect Character(s)
  • Nora Salter
  • Sean Brooks
  • Erwin Kloos
  • Evelynn "Boats' Sotomora
  • Why Tali's mother not a tag
  • Geth Human Alliance
  • Humanity Brings Quarians Back to Rannoch After knocking stubborn Quarian Heads Around
  • Geth Quarian Peace Treaty
  • First Contact War
  • Krogans Find Humans Hilarious
  • Batarians and Humans Really don't like each other
  • Omega is a pirate republic and the only stable government in the terminus because Aria is a badass
  • Trying my best to do political shit

  Summary

  What if Humanity in Mass Effect was more advanced? What if they had gone through two interplanetary wars before finding eezo technology? Mass Effect/ Call of Duty Infinite Warfare Crossover.

  Series

  • Part 2 of Mass Warfare: From the First Contact War to The Reaper War

  Language:

  English

  Words:

  4,673

  Chapters:

  2/?

  Kudos:

  24

  Bookmarks:

  16

  Hits:

  881