Need a way for customers to set flags on servers

For example, in REMATCH we have 3v3 fleet and 5v5 fleet and they're often configured differently, but currently I can't distinguish in my datasets whether a server is 3v3 or 5v5 fleet, so I can't compare between the two fleets (for example when players complain about network performance in 5v5 but not 3v3...)