fxbreak is a tag used for breaking animations of an object.
Syntax:
eg: fxbreak=l5blue makes blue liquid come out of vox when broken


eg: fxbreak=g5grey makes green gas come out of vox when broken


at the beginning, you put the type of animation (l or g) for (liquid or gas)
in the middle, there is a number but it dosen't do anything when changed. I don't know what it does i put it to 5 and it just works.
at the end, is the color of said liquid or gas.
GAS: yellow, blue, grey or green.
LIQUID: yellow, black, blue, grey or brown.

Don't forget to put nocull before in the tags as shown in the images that are attached.

Nosnow is just a tag you put to disable snow spawning on the tagged vox.
In the image there is a battery with the nosnow tag to stop it from getting snowed on.

explosive defines the explosion strength of an object
syntax in the image shown below

The value goes from 0 to 10.

The invisible tag makes objects invisible when applied. - evanloohaklm
The Unbreakable tag: you guessed it. It makes objects unbreakable. -Camozol