[11530]

Try removing result = false; and changing the last line to return Plugin_Continue; instead.

As it currently stands, result = false; ensures that everyone without the ADMFLAG_CUSTOM1 do not get crits, then that change is set in stone by returning Plugin_Handled. Removing those two lines, and instead using return Plugin_Continue; would allow the normal calculations to continue, i.e. allowing other players to sometimes get crits.