well butcher you don't have to drive one
I'd think they'd be more like base defense type tanks anyway alot of armor on the front and good guns
The 6lb gun could take on a tiger from the side, however you have a fraction of the armor of the later churchill tanks which have a 75mm QF gun. the 6lb gun was far better for anti tank - where the 75mm QF had a better high explosive round.
It was an upgraded gun, however it traded anti tank role for high explosive (think about that). You get the 75mm with more armor or the 6lb gun with less armor.
in Aces high the churchill stands a chance, however its gun is pretty mediocre for being a heavy tank, big armor and little gun. Think of the KV-1 tank, Lots of armor and a horrible gun. Its a match for the Panzer IV, Sherman 76 and a T34-85 so it will fit in quite well.
However, if you look at the Firefly, it rarely gets used.