Such thread already exists, but only in Russian. So I will create the same in 英語. Thanks to @velizariy
Let us begin.
Helmet 1
Inspiration for this one was taken from Type IV helmets by Kirpichnikov.
Probable prototypes are either Helmet of Yaroslav Vsevolodovich:
Or helmet from Gorodets, the closest one:
Problems with ingame model:
一 Anachronism. These helms were not in use by XV century
二 Decorations: Type IV helmets were expensive ones and had ornaments and were gilded. While the helmets in game look too simple.
三 Rarity. I can’t say about that since we don’t have full game but there should be only several of such helmets.
四 These helmets usually had a yalovets: a small jut used to attach a plumage.
五 Stitches were made “в потай” (hidden).