For the Buccaneers, when we fly a squad-night mission, we always start out in the hangar, then taxi to a line-up position, then, on proper signal, taxi by flights onto the runway and launch. It's really cool when you see 12 B-17s or P-51s arranged that way. Bad for your frame-rate, but quite impressive.
Our original CO, the late White Wannamacher (aka BRKT), felt very strongly about flying "historical missions" in a "historical way". He even went so far as to simulate the flares used in big-mission takeoffs. We have tried hard to honor his tradition in what we do on squad nights. May he rest in peace.