Can people deploy from the crew pods [seats] inside the Valkyrie that hold 20, or do they get out and charge out the rear door like we showed?

Yeah, it's more traditional. Obviously you can bolt out the side door as well if you want.

Ideally, everyone goes down the back ramp, but those two side doors allow you to go out the sides, and if you want to get back in, there is a little ledge that deploys out that you can vault and mantle up onto and then back in the ship.