Ah, yes, the Swiss - I met them once in a campaign. Can't remember what faction I was playing but they decided to rush me in a bridge battle. Bad mistake. My arbalesters and arquebuses were lined up either side of the bridge, a bunch of beefed-up halbardiers blocked their way and I shot the living daylights out of them, wiping out their entire royal line. I sure was glad of that bridge, in the open field I would have been mincemeat

I played a Burgundian campaign in XL a while ago, which is a good way to get easy access to Swiss units - IIRC the build requirments are turned down as well. Very powerful unit roster - then after you've played with them you have to have a campaign in PMTW as the Pike and Musket bug is infectious