Is it possilbe?

Is it possible in any way to play as international teams like Armenia or Rwanda or other bad teams like those ones? Not sure where to post this so feel free to move it to the right place. Thanks.

If there are enough players, yes. I doubt there are enough Rwandan players in the game for that to be possible, but smaller teams like New Caledonia, Fiji, Congo, Gambia and Wales are all playable in mine.

What leagues did you load to get those nations?

I remember playing as Venuatu on FM11, however, I only managed to manage them because of a database add-on someone did for the outlying islands.

Loaded Argentina, Australia, Brazil, Chile, China, England, France, germany, Holland, India, Indonesia, Italy, Malaysia, Mexico, Norway, Portugal, Russia, South Korea, South Africa, Singapore, Serbia, Turkey, USA, Uruguay and Ukraine at the start. Have since removed leagues now I have a job though, rather than keeping all of those running at once.

You can load all players of the specific nationality while starting a new game, by the way.

I can play as both Rwanda and Armenia on my save in 2015. Make sure u pick the large database and load all internationals from all countries or whatever countries u would like to play. I just loaded all internationals from everywhere