Does the team frown upon things like adding your name to the "about" section?
I would, of course, give you all the credit you have now, but I'd just add myself in for the models I made, the alterations I applied and the new factions I created, as well as 2D skin work.
I would also be legal, do everything the licence says to do, keep the URL and credit etc..
And one more thing: Would it be alright with you guys if I change the opening title? (Or at least somhow automatically register an 'esc' as the game begins?) It's an embarrasment having the title "Glest v.7.2" for a game called "Deidras Cathel."
So, if you don't like people giving themselves credit in your game, tell me, but if you don't mind people betting rewarded for their work, please tell me how!