I haven’t heard of much animosity towards City from CCS other than going along with the Oldham firm following a preseason match in 1988. Their real hatred is towards Millwall. This stems from a preseason match in 1990 with a very nasty conflict in New Cross.
The CCS and their predecessors had a history with Rangers. A friend told me of an incident at Ibrox before the ground was rebuilt. There were high terraces with steep rickerty staircases that saw two major incidents involving loss of life. This time the match was drawing to close when Hibs scored to take the lead. He was at the top of the terrace and saw a large group of Rangers fans heading towards the end housing the Hibs support to confront them. He was fearing the worst when a much smaller group of Hibs casuals emerged leaving the Rangers mob to scatter in all directions.
There was an incident in the 1990s. I had been at a match against Rangers with three children and when we arrived home had a phone call from my mother who had seen a news report of major fighting we saw nothing. It turned that the fighting was nowhere near Easter Road but at the other side of the city near Chesser. This was the place where fans’ coaches were parked for Hearts home matches. Obviously Hearts were away that weekend so there was no police presence. It was a organised for that area knowing that Easter Road would be swarming with police.
The CCS were probably the most violent firm in Scotland along with the Aberdeen ASC.