Has this /m/ plot been done before?
>Two factions, one's kind of a sub-faction of a more prominent one
>Both have a rocky relationship because reasons
>Suddenly, hostile aliens
>Two characters at the forefront of either faction show conflicting interests when fighting the aliens
>Suddenly, sub-faction declares a separation from the more prominent, good guy faction and starts a three-way war
>Desperate to win, the prominent character of the newly-minted enemy faction tries to ally with the hostile aliens
>Antagonist fuses with one of the more powerful aliens and nearly wipes himself and all of humanity out
>Protag and more-prominent faction beats them with heavy cost
What you're describing is kinda close to Geisters.
>>15021504
Reason why I asked is 'cuz I thought it up as my OC mecha plot, but I figured I should ask here first if I want to quell the perfectionist inside me.
>>15021494
>>15022418
Fucking Old Badass Rick Hunter.
>>15021494
I've encountered all of those plot elements before but I don't recall all of them in the same story at least
>>15021494
There's a little bit of that in Freespace 2