Duel games cannot be reported
XonStat server returns an error if results of a duel game are submitted
Not sure if this is actually a Xonotic or XonStat issue.
[2017-01-07 20:39:31] Downloading http://stats.xonotic.org/stats/submit -> memory
[2017-01-07 20:39:31] [::SVQC::TRACE] PlayerStats_GameReport_Handler(./common/playerstats.qc:392)
[2017-01-07 20:39:31] Got response from player stats server:
[2017-01-07 20:39:31] [::SVQC::TRACE] PlayerStats_GameReport_Handler(./common/playerstats.qc:393)
[2017-01-07 20:39:31] Unsupported game type (duel)
[2017-01-07 20:39:31] [::SVQC::TRACE] PlayerStats_GameReport_Handler(./common/playerstats.qc:394)
[2017-01-07 20:39:31] End of response.
[2017-01-07 20:39:31] [::SVQC::TRACE] PlayerStats_GameReport_Handler(./common/playerstats.qc:402)
[2017-01-07 20:39:31] Player stats written