There is a niche debate regarding "abandonware"—games whose copyright holders no longer sell them. While dubious legally, the sometimes hosts old Delta Force titles. Unlike Ocean of Games, the Archive is a non-profit library with virus scanning. However, you would need to verify the legal status in your country.
If the installer asks you to "Turn off Windows Defender," That is the universal sign of a malware dropper. delta force 2 download ocean of games