Navigate into the newly extracted folder. You will typically see an Update folder and often a Crack or CODEX/PLAZA folder. :
Are you experiencing a while trying to run the update installer? Crackdown.3.Update.v1.0.2918.2.rar
: Updates of this nature usually don't break save files, but it is always recommended to back up your save data located in %LOCALAPPDATA%\Packages\...\SystemAppData\wgs\ . Navigate into the newly extracted folder