Even if you have to sacrifice multiplayer (online anti-cheat prevents most portable/cracked versions from accessing official servers), the alone makes a compressed portable version worthwhile.
Obtain the compressed archive files from a reputable repack site (like FitGirl or DODI). Verify: Always run a virus scan on downloaded files. download cod black ops 3 highly compressed pc portable
Downloading Call of Duty: Black Ops III through "highly compressed" or "portable" unofficial sources is highly discouraged due to significant security risks, including ransomware theft of sensitive data Even if you have to sacrifice multiplayer (online