Thread#7 visual upgrades 2

Why not implement visual changes as a unit's Doctrine level progresses? For example, an Intercessor Squad has a maximum upgrade cap of 7 levels. At level 7, they should visually transform into a Veteran Squad (e.g., a Sergeant with a red helmet and a wide white stripe, yellow laurel wreaths, purity seals, and a more elite-looking Bolter model in the construction menu, or even visually showing a Melta or Plasma gun).

This would be the peak upgrade level, while the previous stages should scale gradually from the base level 1 up to this elite look. All of these physical models actually exist in GW's catalog, so the designs are already there. It would be much more engaging to see visual progression alongside stat increases, making the upgrades feel deeper and more meaningful. On this basis, you could implement a visual upgrade system for unit models based on their Doctrine tiers: Tier 1 (Base), Tier 3 (First Visual Change), Tier 5 (Second Visual Change), and Tier 7 (Peak Progression).