BBiA_duchessspringrollsi am not convinced that valve cares about 6's until they implement class limits
tbh a class limit of 2 would work perfectly. There is no need for anymore than 2 classes. A class limit of one is way too restrictive, but two is fine and very easy to implement.
2 demos can have upwards of 4 traps and can make team pushes way slower
2 medics will ruin the uber race
2 snipers can each stare down a sightline in spawn and change class quickly for an early force
2 engies can easily hold badlands if each is placed on top right and top left
2 pyros can deny an uber hard with double the ammo of 1
2 heavies can LG the fuck out of anything in the sky