TankSharp

[PlasmaKrab]

May I suggest for the future US AFVs which share a common chassis across all lines, like the IFV, SP Artillery, Tank etc; in that you design them so that they all have the same basic protection, perhaps 50mm of Rolled RHA (outer frontal hull), followed by about 650mm of void space then 50mm of Rolled RHA (Inner hull).

That's exactly what I had figured out for now. Without the metrics, of course, and that's where Tanksharp will be helpful.
If you look at my OOB, most Block-III combat vehicles have exactly the same hull armor levels.

Now I hope your latest version is advanced enough to include crew-in-hull ergonomics, advanced ERA and NERA, hybrid drives, DE weapons...