Weight

[Bobo]

(...) Weight is price we pay for better protection. Only thing that seem right here is what you stated about milinese and velrolen plate.

That. Milanese was introduced after some discussion concerning Legionnaire's ability to kite and it was made light and strong as an exception from the general rule "stronger = heavier". However, I can't see many of them in use, probably due to lack of exchangeability with other inf heros (it's just too expensive to craft one when you already have Heraldic Trans / Swadian Halfplate to use on your RG / Zwei).