Syntax: .modify rep #repId (#repvalue | $rankname [#delta])
Sets the selected players reputation with faction #repId to #repvalue or to $reprank.
If the reputation rank name is provided, the resulting reputation will be the lowest reputation for that rank plus the delta amount, if specified.
You can use '.pinfo rep' to list all known reputation ids, or use '.lookup faction $name' to locate a specific faction id.