requires significantly more than 100MB, and downloading such a small file from unofficial sources poses severe risks. The Reality of "Highly Compressed" 100MB Games

: Most "100MB" downloads for large modern or classic games are actually Trojans, ransomware, or spyware

was released in 2006 for consoles (PS2, PS3, Xbox, Xbox 360, Wii). It was never officially released for PC . Any website claiming to offer a "PC version" of Call of Duty 3 is distributing either:

Game backups for consoles should end in formats like .iso , .bin , or .chd . Never run an .exe file downloaded as a console game.