I was sneaking inside ASS files a bit more instead of making my own game, because priorities! and I actually discovered few things.
1. Chyos installed quite a lot of plugins, few of which he ain't actually using.
2. Chyos installed all the necessary plugins needed to work that in game without actually swapping imagaes. Mainly Action Sequence Packs and Weapons Animation plugins. Which means he can set up each weapon not only with thier own attack animation or even few of them, but thier own look too, of course if having neede graphics.
3. It can be done within a day of work if or even less with by someone with enough experience with rpg's engines.
4. I did it within a half day of work.
5. RPG's encryption is but a joke, I wonder why people are even using it. Especially if some plugins can actually break if some things are encrypted.
6. Because ASS is using also YEP_ItemCore with Extensions and Chyos setting those up as he needed, each item is unique.
Thus playing with mods is somewhat save-breaking. And by "somewhat" i mean if you play, let's say ASS version 5.5.0a but modded, then update to 5.5.0b and start playing it without a mod for 5.5.0b you'll have "breaking" save file. Save will be asking game for data that doesn't exist.
But it can be avoided and is fixable. All you have to do is to... either sell (which means remove) all modded items from your equipment and inventory and then start playing unmodded game or... wait for mod for version 5.5.0b and play it like nothing happened or just... don't use those items, like at all, until mod update.
8. There is no 7! :O
9. Chyos would have to implement any mod into his game for it to not cause any problem. But, that wouldn't be a mod anymore, but a part of the game.
Still, my post contain a "mod" if you wish to play a bit for shit and giggles.