Big if true.
Heimdall (killed by Thanos)
The Collector (killed by Thanos)
Ebony Maw (killed by Doctor Strange)
Proxima Midnight (killed by Scarlet Witch)
Cull Obsidian (killed by Hulk)
Bruce Banner (only the Hulk is left)
Vision (killed by Corvus Glaive)
Corvus Glaive (killed by Captain America)
Mrs. Hawkeye (killed during Thanos' invasion)
Gamora (sacrified by Thanos for control of the Soul Stone)
Heimdall (killed by Thanos)
The Collector (killed by Thanos)
Ebony Maw (killed by Doctor Strange)
Proxima Midnight (killed by Scarlet Witch)
Cull Obsidian (killed by Hulk)
Bruce Banner (only the Hulk is left)
Vision (killed by Corvus Glaive)
Corvus Glaive (killed by Captain America)
Mrs. Hawkeye (killed during Thanos' invasion)
Gamora (sacrified by Thanos for control of the Soul Stone)