Pretty simple to load up, just following the simple instructions is sufficient.
Once you run the loader, hit the trigger key(Insert) at the menu and wait for the sound cue to ensure that it's running. It does hang the game for a few seconds, just be patient. 
Also, configure your entities to render(enemies, friendly guns hands etc) and their respective colors before you enter a game, my dumbass couldn't figure out how to do it in game.
It uses the games visibility check while rendering a model, so you won't be able to see evreything, but I think that's a good thing if you're trying to stay UD. You wont be able to see through smokes and accidentally shoot someone. You can work around this by putting a wall or other Item between you and the smoke to "see" through it, as long as you're not too far away from the entity being rendered.

In closing : "Gives you an edge without making it blatant, unless you make it blatant that is." - IGN 10/10

Thanks for the review! If you want to spice it up a little check out the Testimonial Template. 

Thanks for the heads up!