This mod is fully voiced and there are 9 missions focusing on the SKULLHOUND terrorist storyline from start to end.
New gunrunning DLC music will play though out the missions
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Change Log 3.2.1
you will need to download NativeUI, link below
improved audio codes
SectorXAudio folder now needs to be placed in gta 5 scripts folder so people with any hard drive letter can use the mod properly.
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Info:
Join a government agency known as sector x and complete top secret missions for them.
Go To the X icon just outside the army base, Stand in the yellow marker and press J to start the mod.

SKULLHOUND Storyline 9 missions:

-Training Mission 1: INTRO A Training Program That Simulates a Terrorist invasion at the army base.

-Mission 2: A sector x agent gives you, your first mission to kill all invading terrorists and their leader in the countryside area.

-Mission 3: infiltrate a terrorist base located just off the coast and eliminate all terrorists and secure the base.

-Mission 4: Objective is to get intel on the epsilon to prove they are helping terrorists, but something goes wrong.

-Mission 5: Escape from The Terrorists Prison and base.

-Mission 6: Eliminate the terrorist threat in the city of los santos.

-Mission 7: Terrorists are planning to release toxic chemicals over the city, you must stop them and secure the chemical weapon.

-Mission 8: Terrorists Invades Fort Zancudo And SX49 Must Stop Them In A Big Rhino Tank Battle

-Mission 9: sector x gets intel of a terrorist base and you are sent there to kill the terrorist leader to end SKULLHOUND for good!

Install:
Important Put the folder "SectorXAudio" in local disk C:\
example how it should be: C:\SectorXAudio\
Put SectorXMissions.dll file in GTA V "scripts" folder
Put SectorXProps.dll file in GTA V "scripts" folder
Put NATIVEUI.DLL file in GTA V "scripts" folder

Requires:
ScriptHook V
ScriptHook V Dot Net
ScriptHook V Dot Net 2
NATIVEUI.DLL
Windows Media Player

NativeUI Link:
http://gtaforums.com/topic/809284-net-nativeui/

Mod By ShadowCoderKing/SpiderMight