This addon does replace some of the mobs to look like German Soldiers. Some block textures were changed as well. The guns do have custom-made sounds.

Guns Replaced:

Bow - Gewehr

Crossbow - Winchester Model 1912

Snowball - Thompson

XP bottle - MP 40

Enderpearl - Karabiner 98k 

Egg - Bar 1918 

Fishing Rod - Lugar
 

Important Items Replaced:

Totem - Military Radio Phone

Shield - Metal Shield

Ender Eye - Plant Pot Base

Hidden Feature:

Exclusive to Grenades attachment addon only:
Replaces the XP bottle which was the MP 40. Which will be replaced again with a Stielgranate (German Grenade)

XP Bottle - Stielgranate (German Grenade)

- Berries when placed down, it is retextured into barb wire.

- Wearing the pumpkin on your head gives you the night vision HUD display.

- Textures are partially different in some blocks and items.

Changes as of v1.5 update of the addon:
- The Changes WITHOUT Experimental Gameplay*:
    *The Fishing Rod and Egg were switched around
    * Loot tables were changed again
    * The Snowball now does not clip through blocks anymore and finally breaks when it should when colliding with blocks and hitting collision boxes. It was the hardest code to fix in over 6 months. (May vary the version your playing on the results of the snowball, I recommend updating to the latest version of Minecraft)

Changes of v1.7 addon:
- updated crafting
- removed the op mob drop loot
- Retextured Rotten Flesh to MRE

Added the v1 WW2 Grenades addon as a separate pack to bring it back from v1.1 so it does not conflict with any packs if you still need it.

- Experimental Gameplay TURN ON:
     +* All previous changes from the standard stable updates is included
     + custom crafting features (All guns) (Fixed in 1.17 format)
     + Guns are correctly put on the hand.
     + Canned Food and Ammo can stack at 64 items
You will need to enable Holiday Creator Features & Additional Modding Capabilities if you want it to work with these extra features correctly.

However, everything else that works with experimental game-play is turned OFF or ON.

The addon does work without Experimental Features but it will be without some features if you take that risk away from experimental.

FAQ:
- Guns will still shoot with or without experimental gameplay turned OFF and ON. Snowball works regardless, ever since the clipping collision issues occurred. May still persist in 1.17.
- Some of you asked me to publish the old version of the pack. Version v1.1 and v1.2.
- If you're wondering where the grenades went, I removed them from the pack. I made it separate grenades separate addon pack since there is some debate whether if it was OK to have weapons that damage the map and if they shouldn't. I will need more feedback to publish the grenades again with splash damage.
- Players that want experimental gameplay experience on and off are supported.
= Beta Version of Minecraft is still NOT supported in this addon, It's recommended using the stable versions of Minecraft. Use at your own risk per update.
recommended for +1.17.x.xx version only.