When reporting to Warrant Officer candidate school is is best to just roll up your service uniform and pack it into your ruck and or duffle?

If you fly to Rucker, put it in a foldable garment bag. On the last day when you graduate, you'll want to change out and put it away before flying out. I suppose you could roll it up too, or you could hold yourself to a higher standard and take care of your uniforms.

I learned a while back to always bring a portable steamer. I would hang it in a garment bag and then steam it when needed. I wouldn't roll it up.