Here's a snip:
GI: You decided to bring all of the original player classes back. We’re there any thoughts of bringing in any new classes or getting rid of any?
Walker: The answer to both of them–yes. We messed around with a few different things. We really just play tested a lot of stuff. Some of the previous classes were buckets that were useful, not necessarily stayed the same. The Pyro is really different, the Scout is really different, the Medic, in terms of their role. We call the Scout a Scout and there was really some discussion if we should call the Scout something else because he’s so different, but it doesn’t seem to be too important, but the name still implies a role that’s pretty analogous to what he does. We were able to find a unique space for all of them. I think the trickiest ones were the combat classes. But that worked out really well. The difference between playing a Pyro and playing a soldier which is sort of the “these classes aren’t that different” in TFC. I think they’re more unique now. Seeing a Pryo instead of a Scout, your reaction is totally different than if you see a Soldier.