So, I have hitman47101's animation replacers installed, works like a charm. But, I want to know how to switch the animation on some guns that don't use the custom animations (I.E, certain guns in Weapons of the New Millenia). Any help would be much obliged:D

You want Millenia's weapons to use hitman's animations? (That's how I understood it, I might be wrong)

If that's what you want to do, open the desired weapon's plugin in GECK. Now I assume vanilla weapons use hitman's animations - so just open a vanilla weapon by doubleclicking it, go to sound & animations tab and check which animations it uses (Reload type and weapon fire animation). Memorize them or write them down somewhere, exit the weapon's edit window, and open up the custom gun's edit window the same way. Switch to same animation set as the vanilla gun.

Might be obvious but still - note that you should find a corresponding weapon type when checking vanilla weapons' animation types. For example if you want Millenia's USP to use custom anims, check a 9mm or 10mm gun's animations and apply the same ones to the USP.

Recently, i make DJ308's SG 550, use ShinyHaxorus (Heffy) AK anims
What you need, is editing the reload type to reloadM or reloadN (AK or AR15 based), and fix nodes names and positions of mesh in NifSkope. It can be really annoying for the first time, but it worth it

Yeah, it's not as simple as just changing the slot in the geck, though that is part of it. Try this thread, should give you a good idea of the steps required.

https://www.gunetwork.org/t5473-animation-assignment-questions

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