File:Grey Class Improved Walker.jpg

Summary
This is an "Improved Walker" design I think the allies may come up with to address some of the Walker's short comings. They'll probably build a few more Walker's to get experience with the new techniques & iron out problems, but this is a logical next step without going too far. With the Jap air power surprise, they're probably putting AAA weapons on a crash development program. So, hopefully we'll start to see .50 cals going into production & maybe a 25mm variant.