Arma is a open sandbox game unlike other corridor scripted games, no wonder the stupidity
of the AI shows more in that type of environment then others.
Precisely! And notice that the AI in those corridor scripted games can hardly be called an AI -> They are just bots that can only execute a pre-set of scripted actions that only work in a small area of a map (like a room for example). If you put one of those "AIs" that we see in corridor scripted games in an open world map like the ones of ArmA those "AIs" would do nothing!
As opposed in ArmA you have an AI that when you place it the map they will take action if it sees an enemy and this without any scripts whats however. Also notice that one AI soldier is ArmA is capable of:
-> Fighting as an infantry soldier and executing tactics such as flanking, supression fire, direct attack and even retreating without any scripting or any special action by the mission editor.
-> Driving and crewing land vehicles (car, armored vehicles, truck, etc...).
-> Flying and crewing helicopters and fixed-wing aircraft.
-> Driving and crewing boats.
And all of the above in a open large map!!
And again, now tell me which AI can even do a small part/percentage of that I mentioned above??