im using lite-c, free version for this game,
i own a A6 version too, i don't own A7,

well, i will take a look at materials, thanks!

i have found that i can "copy" entities using clone, i think this way i can modify each model UV coordinates individually... as every model has only 12 triangles, i think its not a big memory waste.

Edit: using ent_clone on lite-c free version, crashes. On the lite-c help file, there is no ent_clone function....
Another way can be to load a big bitmap, and then copy smaller rectangles of this bitmap, for the models skin, so each model has a small skin, and all different, what do you think its better?

Thanks!