Instructions for installing the milk bottle model:
Open "TexEditor" and click "Open." Navigate to your game folder, then open the "global" folder; inside, you will find a file named "gmodelscp.tex." Open it to view the game's models. Locate the milk bottle model—in my case, it is named "CJ_bottle3_new.bmp." Right-click on it, select "Replace," and then choose the milk bottle model you wish to use

The "Bottle models" folder contains 4 subfolders:
 1 – The original milk bottle; you will need this if you ever want to revert everything to its original state
 2 – The original throwable bottle (which also appeared in Manhunt 1)
 3 – A plain white milk bottle 
 4 – The throwable bottle from the Nostalgia Modpack 1.6.8

I would also like to mention:
The author of the TEX/TXD Editor – MAJEST1C_R3 
And the creator of the Nostalgia Modpack 1.6.8, from whom I sourced the bottle model (found in folder 4) – WhoIsPrice 
I hope everything is formatted correctly. 
I truly hope you enjoy it!

If you have any questions, you can ask them via the links below:
Telegram - t.me/B1NEY24 
TikTok - tiktok.com/@b1ney24