Been playing with this for a while - initially it started as a way of using the mighty empires tiles as a stand alone game which could be played a little like risk. I've adapted certain rules and included a quick play section where instead of playing a game of 40K (or 30K in our case) you roll off to determine the winner then modify the roll.
I've play tested it a few times and it seems to work pretty well. You need at least 3 players (4 or more is better and more bloody), a set of mighty empires and a few dice. There are rules for cities so you could either token a tile, convert one (the top parts of some COD parts look very good) or buy a few from the GW online store. Same with the volcano tiles just use a mountain and either token it or convert it.
I'm planning on a further update soon to include the tiles released in the 40K version of mighty empires (planetery empires?) and I will probably expand a fuller version for use with games of 40/30K where systems and certain planets are identified with specific missions to represent certain battlefields fought on by the emperor's finest before the heresy.
If anyone is interested in obtaining a copy please PM me and I will email you the word file.
I may take some photos of my tiles so they can be printed and used as templates - if that woul dbe useful.
I'd love to see some pics and so forth - sounds very cool.
if you PM me your email address I'll send you the file ;)