This is a AC-130 Gunship. It has a Artillery Cannon and 4 AA cannons with explosive rounds used for devastating ground assault.

Extract to E:\Games\Steam\SteamApps\Ursername\garrysmod\garrysmod

Addons needed:
Wire Mod
Military model pack 2: http://www.garrysmod.org/downloads/?a=view&id=74950
F117 Bomber: http://www.garrysmod.org/downloads/?a=view&id=76887

------> SBMP SVN <------ u need this for the guns to work!!!!!!!!! IMPORTANT READ BELOW!!!!!!!!!

For people who don't know how to get the SBMP SVN and for those who can't get the guns to work:
first download TortoiseSVN from http://tortoisesvn.net/downloads
Then after that is installed go to your garrysmod/garrysmod/addons folder and make a newfolder and call it SBMP, then right click on it and click the tab SVN checkout and put the following link in the URL box and click ok: http://spacebuildmodelpack.googlecode.com/svn/trunk/SpacebuildModelPackAlpha2

Controls:
left click forward (best for shooting and flying)
W forward boost(suggest don't use looks unrealistic)
S Reverse
A bank right
D back left
Mouse turning and pitch

1 Artillery Cannon
2 AA Cannons
0 Propellers
Enter Side Camera

space and ctrl to change camera

If you want to contact me add me on steam: masskeeler

Edit:

It's a Adv dup file and if you don't have SBMP SVN look for it on the Facepunch website.