IGI 2 was one of the first games to successfully blend stealth with first-person shooting. You couldn't just run and gun (unless you wanted to be swarmed by enemies instantly). You had to check patrols, hack computers, and use the silenced MP5 effectively.
Here is a general step-by-step guide to getting it running: igi 2: covert strike download for pc
If you have an external disc drive, you can still find original CD-ROM copies on secondary marketplaces, though these may require manual community patches to run correctly. System Requirements (Windows) IGI 2 was one of the first games