And there is also a Famicom Japanese game called Gebara where you play as el Che and Castro, but you need to play the Japanese version since the Usonian was censored and they changed the story.
Edit: I just noticed you said FPS, but well, hope you like them anyway
There is Syrian Warfare. https://store.steampowered.com/app/485980/Syrian_Warfare/
There is also Gesta Final which is a Cuban video game, you will have to pirate it and maybe it will be easier to run it with Proton than with Windows.
https://www.ecured.cu/Gesta_Final
And there is also a Famicom Japanese game called Gebara where you play as el Che and Castro, but you need to play the Japanese version since the Usonian was censored and they changed the story.
Edit: I just noticed you said FPS, but well, hope you like them anyway