Gnome and Moustachio achievement guides (w/ pics)
Finding the gnome
Start in the 2nd map of the Dark Carnival campaign. As soon as you enter the carnival for the first time you will find a shooting range.

You have to win the minigame in order to get the Gnome. (Sorry, guys, no spaceshuttle) You need 750 points in order to win the game.

You get 100 points for shooting Moustachio (The badguy in the pic below) and -100 for shooting Peanut. Id recommend using a Uzi or some kind of Assault Rifle and dual pistols.

As soon as you have reached over 750 points the window with the gnome inside will unlock, and you will be able to carry the gnome around.

(what a smug bastard...)
The gnome works just like a propane tank or gas can, but shooting it has no effect. However, you have the ability to throw it by pressing M1 or RT (by default) and sometimes this can 1-shot common infected and weaker special infected.

As it works exactly like a gas can, you dont have to carry it around for the entire campaign. Just drop it by pressing E or X. But always try to remember where you put him down. And Id recommend to not drop him anywhere on the giant rollercoaster later in the campaign. It is possible to jump down to pick him up again and climb back up, but this will waste a lot of time.


(WEEEEEEEE!)
I have not properly tested this, but try to hold him before you close the saferoom door. You dont want to spend so much time carrying a prop around and then notice its gone and you have to start all over again.

In the finale, place him where the helicopter is going to land, so you wont have to care about him during the 2 hordes and 2 tanks. Again, make sure to hold onto him and dont just drop him at the floor. (Besides, he may fall out)

MOUSTACHIO ACHIEVEMENTS COMING SOON