seems to be broken. heavy tank has just artwork replaced but still has light tank weapon/armor

I've never heard of this before, I look forward to giving this a try!

If this were a "new" mod (rather than a conversion of an old mod from 2004) I'd have a suggestion regarding the story - the name "Bio Defence Initiative" sounds a bit odd, as rather than defending against bio weapons they are using them!

I'd have simply said that GDI had now shown its true colours as an evil force intent on world domination, using it Tiberium-based bio weapons.

Or, perhaps Nod deep-cover operatives successfully infiltrated GDI and took control... but then refused to obey Kane's orders and decided to take power for themselves. (Very consistent with all the Brotherhood in-fighting we see throughout the games!)

But yes, looks like a brilliant set of missions.