Hi,
I haven't uploaded any map with working radiation yet because I haven't finished creating even the demo one. If you want to take a look to the new features I've added you'll have to mess a little with the map editor.
Just place positions in the map with the following labels and it should irradiate or have other effects on the player itself.
Possible labels (without the quotation marks): "_radioactive", "_chemical", "_psi", "_radioactive_heavy". Just be sure to place a position (the button on the editor where it says LUA) and name it correctly.
Also place in a chest the new items that are added (Stimpacks, Medkit, Vodka, Brain Controller, Suit Cleaner, Artifact) and the standard suits in the game.
Thanks for downloading :)