<USER> or <USERNAME> Doesn't work in URL

[ggwp113]

Hello, so I want that every GET request would change in URL with USER COMBOS only. For example google.com/gc=4411 google.com/gc=2221 and so on..
When i try to add after google.com/gc=<USER> or <USERNAME> and it doesn't seem to work, please help!

[Ruri]

Edit your Environment.ini and add this Wordlist Type

[WLTYPE]
Name=User
Regex=^.+$
Verify=True
Separator=:
Slices=USER