Mass combat rules

I've been reading a lot of the stuff that's been written about ship combat in KH, and it occured to me that one area that seems not to be spoken about is large scale fleet battles. I was wondering if anyone ever considered making rules for KF and for that matter AD that would be like the Battle system that TSR had for D&D and AD&D back in the day, thus allowing for large scale land and spacefleet engagement.