oh, ok. Then it's not very interesting fome. Thx anyways

This mod must be ran by the server to work.
It's only working for alien weapons because it's currently an experimental mod which works off alien cloaking code and shader.

Looks awesome, but sadly doesn't seem to work anymore

Any chance you are gonna get it working again? And maybe add the same for Marines too ;-)
If no coding is involved and if this can be done with the modtools or photoshop, could you tell me which files have to be edited to do this?

You can always manually use other mods to hide your viewmodel anyway.
NS2+ gives the setting to hide viewmodel that is enabled on most servers.
So this is actually a quite good compromise

Some servers already run view model hiding mods. This is an optional mod for a highly moddable game.
Personally I think skulk vision blocking (while other lifeforms don't suffer this problem) is a bad design putting off new players.

Isn't this a bit of a cheat? Alien vision is always on, and the view models blocking view (particularly with Skulk) is by design, otherwise it's too easy for alien players to land consecutive hits.