Thanks Bohemia,
Since Arma3 engine cannot cope with CTI missions or any other multiplayer with more than any decent amount of AI on maps! So I back-tracked and installed the original Operation Flashpoint 1.96 yep its 12 years old and the graphics are no where as good as Arma3 but its playable and smooth with CTI missions with 100s of AI on large maps, So for now I am going to uninstall shitty steam and Arma3 wait for 12 years or so and play it then! So Bohemia if between now and then if you decide to listen to your customers and fix this issue let me know! right now I`m fed up of you just releasing another (SHITREP) that fixes issues that to be honest no one cares about when your game runs like shit