M1 A1 blockout and lower body sub-d modeling - part1

Here is an M1 A1 Abrams Tank that I've been wanting to detail out for quite some time now. I had started on a rough version a few months back and decided to start over on a majority of it as I wanted to revise my hard surface sub-d workflow and more practice is always key in my off time.

After spending a lot of time gathering the best reference possible, I started modeling the blockout to get the proportions right. I am going for very high, accurate detail and plan on spending a good amount of time on this model. Everything will be subdivided (mainly for practice) and I plan on bringing main parts into Zbrush to sculpt detail.