I would wager it is a high shot, low to medium strength weapon. Exterminator brings lots of shots to mind for me. It likely won't be anything super strong because we already have Heavy Gauss Cannons. So maybe more like the Gauss Blaster for strength and AP but more shots.
It will most likely be a shot weapon sure, because otherwise it wouldn't be able to hit air targets, but it looks like a short doomsday cannon, which is what got me interested, but yeah you are probably right, will they release experimental rules for these or is it only in the book?
You'll have to buy the book. FW will do experimental rules if it releases something that isn't or won't be in a book for a while. But even the bomber kit they just released doesn't have experimental rules because it will be in IA12, which is so close to launch.
A forum community dedicated to Warhammer, Warhammer 40K enthusiasts. Come join the discussion about Warhammer and Wargaming collections, miniatures, tactics, terrain, reviews, accessories, history, displays, models, styles, scales, reviews, accessories, classifieds, and more!