Ok it wasn't an out and out gunline but I put down a list this weekend as an experiment and the main thing that was different was a 40 man unit of x bowmen. For the record I also had a knight unit, about 8 with my general in, helbalster, cannon, stank 23 great swords, demi chicks 3 archer detatchments, a preist, mage and bsb and was playing my mates orks.
So anyway I used heavens to reroll missed 1's on my xbows a couple of times and the first point I will make is, for three rounds they where devastating. I managed to give them flaming and killed 6 trolls and took 2 wounds off another one, I finished off the trolls next turn then reformed deep to try to hold steadfast... and here is where the problems began.
They just died so very very fast in the face of Orks that I couldn't hold squat for any amount of time, even with a Stank supporting with a flank charge. I only narrowly lost the game and it was a hoot but my great swords, with no support at all, were great performers for me and the xbow bunker died in 3 combat phases, even with my chars in there.
I like the tactic and use something similar with gobbo archers when I borrow my mates army, but the key difference is that the gobbo archers have poison, sometimes on 5+ due to the spider banner I put in there and a spell, they come in units of 100 and they, even then, are cheap...
I know this is no surprise to anyone but yeah, I don't think this really works, I'll put my faith back in my 50 spears and two 25 helbard supports, or 40 helbs or even 40 swords, but the shooting, though made really good with heavens support, is just too flimsy late doors
. Shame, I liked the idea and it gives you some options against Elves (who appear to now be THE gun line army!) and Orks, who are a bugger when played right.