The true "Top" install is buying the game. Why? Because even if you get the CODEX version to work, the multiplayer servers (where the "Top" action is) are empty on cracked versions. Furthermore, Windows Defender has a nasty habit of quarantining the CODEX crack every Tuesday during updates, forcing you to re-install the crack.
Since a CODEX version prevents official Steam Workshop access, you must manually install mods. The "Top" mods include: call of duty advanced warfare codex free install top