I know this wasn't an actual reqeusted task, but there is a "tuna" model in the map editor, and it's pretty far off (just a copy of the general "fish" model). So, I made model for a big, bluefin tuna. My current problem is, I'm not sure exactly which species of tuna I should go for. Something from the mediterranean sea should fit I think, but even there, googling for references I can't even 2 references with the same number of fins...