so I played through the Marvel's Avengers game and its DLC and... yeah its bad but in a frustrating way, because there are these frequent glimmers of an amazing game. It looks gorgeous, the character interactions are fun and the story is decent... but the Live service aspects really kill it. I found it really hard to actually follow the story of the game given how the missions are just littered on the "objectives" page at random and are all accessable from the beginning. Also if you are planning to play this yourself (and you are running out of time) on the main menu click "campaign" DO NOT click "play now" as it takes you to the post-game and opens with a spoiler-filled recap of the entire story, including the DLCs...
anyways, OPs is slightly wrong, as the portrayal of characters in the comics and novel indicates that the novel comes first. Also it is missing the online story "A Sunset with You" which was written for Pride, and there is also a Ms Marvel tie-in comic that wasnt published but you can find a completed version of it floating around online.
for anyone who is interested, I wrote up a quick timeline of all the media. "BAD" stands for "Before A-Day" and AAD stands for "After A-Day", however I personally assume A-day happened in 2020 (Interestingly the lead-up to A-Day does represent the intense fandom-era of the late 2010s while everything post A-day does have that more gloomy post-pandemic '20s feel)
Red - Text stories
Green - Comic story
Blue - Main game (with relevant game chapter titles listed)
Purple - DLC
5000BC
Extinction Key: Prologue
1940s
Marvel's Avengers: Captain America pg 11-14
5 yr BAD
Marvel's Avengers: Black Widow pg 1-19
1 yr BAD Roughly October-November
Extinction Key Chapters 1-32
1 yr BAD
Marvel's Avengers: Iron Man
Marvel's Avenger's: Thor
Marvel's Avengers: Hulk
Marvel's Avengers: Captain America pg 1-10, 15-20
Marvel's Avengers: Black Widow pg 20
Marvel's Avengers: Ms Marvel pg 1-6
AD
Marvel's Avengers Extinction Key epilogue
Marvel's Avengers: I want to be an Avenger
Marvel's Avengers: The Light that failed
5 yr AAD
Marvel's Avengers: Ms Marvel pg 6-22
Marvel's Avengers: New Normal- By Force of mind
Marvel's Avengers DLC: Taking AIM
Marvel's Avengers DLC: Future Imperfect
Marvel's Avengers: Breaking the Odds
Marvel's Avengers DLC: War for Wakanda
Marvel's Avengers Klaw Raid Discordant sound
"A Sunset With You"