If the blue few had any sense they wouldn't buy tickets but travel en masse to Swindon.
Millwall used to do it years ago, travel in huge numbers without tickets and the police used to make sure they got in because it was easier to manage them that way.
I'm sure if they were all milling around in the pubs and car park the police would soon get them in the ground.
'Course, that would require organising. Not their strong suit.