Is it plausible to depict the Segmentata using armor upgrades?

[antisocialmunky]

However, armor upgrades are hardcoded to give +1 armor (nothing more, nothing less). Not to turn this into a LS debate (which will be closed if it does), but some people argue that LS actually provided less protection then LH.

In the unit description it displays +1 but in the actual engine registers more than a +1 for many levels. If you look around, you can find the exact numbers. The only one I remember is that from unarmored to padded is +4.