How to make invisible ourself from the enemy in IGI-Covert Strike
First go to the folder where you have installed IGI2 for ex: c://programme files/IGI2/ Here you will find a folder named ''common". Open this folder. Now in this folder there will be a another folder named 'ai'. Open this. In this folder, there will be three files namely 'default.qvm' , 'setting.qvm' and 'squaddefault.qvm'. Now delete the 'default.qvm' and 'squaddefault.qvm' file. Now copy the 'setting.qvm' file in the same folder two time. Now rename the both copies, one with 'default.qvm' and another with 'squaddefault.qvm'. NOTE: Do not write the extension (.qvm) when you are renaming the file just write 'default' and ,sqauddefault'.