I do not delve into Far Cry mods that much but the Matto series has said to be good. I have looked and found Matto 4, 3, and 2 at FarCryFiles. Does anyone know if there is a Matto 1? If so, where could I find it?
Yes. But it wasn't called Matto 1, it was just called Matto. It was released a while back and I believe you can get it on FF here, or at their official website.
A bit of information: Matto does not follow any plot like 2, 3 or 4 do. It was their first [as far as I know] singleplayer level and it's pretty rough but very good by custom map standards.
In case you haven't found it yet, here's a link for just about every sp and mp map out for farcry. There are some excellent mappers over there and nice guys to boot. They do it all for free, so don't forget to say thanks. Far Cry Community Maps: download / Single Player Maps
Hey where i was booted from, ahh the memories. DON'T POST ANYTHING HAVING TO DO WITH CHEATS THERE! i learned the hard way.