[ArmA III - OPEX] Tutorial: how to install OPEX ?

A simple tutorial to help setting up OPEX.
► OPEX Mission Collection: steamcommunity...
► OPEX Mod Collection: steamcommunity...
► Music: • French National Anthem... (with kind permission of L'Orch)
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► OPEX: External Operations is an immersive fully dynamical task generator introducing the French Army fighting against terrorist organizations all over the world...
► Download the mission from Steam: steamcommunity....
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► For more information, feel free to visit: gemini.69.free....