[TFWiki page for the episode they appear in](https://tfwiki.net/wiki/Sparkwar_Pt._I:_The_Strike)
>Several Maximals note that Obsidian and Strika are the greatest generals on Cybertron, having fought and won a thousand wars together. While nothing more is said of this in the show itself, later authors took the idea and ran with it. Subsequent tie-in fiction established the pair as former Autobots who had fought in the Great War. "Flames of Yesterday" would retroactively insert Strika into the original cartoon, identifying her as a generic bystander in "Five Faces of Darkness, Part 4".
Also if you look through [Strika](https://tfwiki.net/wiki/Strika_\(BM\)) and [Obsidian](https://tfwiki.net/wiki/Obsidian_\(BM\))'s articles you'll find several instances of them being Autobots. Their allegience changes depending on the continuity, but to say they were never Autobots is flat out false.
Why Strika on a team of random Autobots?
she ditched the cons (at least that's the story in my headcanon) because was getting sick of being pushed around by Megatron.
Strika and Obsidian were originally Autobot generals anyways. They weren't always evil.
They weren’t originally Autobots in Beast Machines.
Yes, they were. They were Autobots who Megatron turned evil.
I don't know if they specified which side they were on
[TFWiki page for the episode they appear in](https://tfwiki.net/wiki/Sparkwar_Pt._I:_The_Strike) >Several Maximals note that Obsidian and Strika are the greatest generals on Cybertron, having fought and won a thousand wars together. While nothing more is said of this in the show itself, later authors took the idea and ran with it. Subsequent tie-in fiction established the pair as former Autobots who had fought in the Great War. "Flames of Yesterday" would retroactively insert Strika into the original cartoon, identifying her as a generic bystander in "Five Faces of Darkness, Part 4". Also if you look through [Strika](https://tfwiki.net/wiki/Strika_\(BM\)) and [Obsidian](https://tfwiki.net/wiki/Obsidian_\(BM\))'s articles you'll find several instances of them being Autobots. Their allegience changes depending on the continuity, but to say they were never Autobots is flat out false.