I should start by saying that this guide is for the Vertigo 2 Demo. i am posting this in the vertigo remastered community hub because the Vertigo 2 demo doesn't have one

Step 1
Load the game (Vertigo 2 Demo)

Step 2
go to your desktop and press the ~ button

Step 3
Type in the console enc_unlockall

Step 4
Go back into the game and you should have all encyclopedia entry's unlocked now!

Here's where the real fun begins

Step 1
Load a level, any level

Step 2
Open console with ~ (Just like with the encyclopedia entry's)

Step 3
Type giveallweapons in the console, its that easy!

There are a bunch of other cool things you can do with the console by typing help in the console

there is also a hidden level that can be access'd by typing loadlevel Playground into the consloe

thanks for reading!

Feel free to comment if you have any questions.