Using older versions of Unreal Engine 4

[OnlineSubsystem]
DefaultPlatformService=PlayFab
NativePlatformService=Live

[OnlineSubsystemPlayFab]
bEnabled=true
PlayFabTitleID=<REPLACE ME with your PlayFab title ID>
MaxDeviceCount=<REPLACE ME with your max player count (note: split screen is still 1 device). In the example of an 8 player game, this would be 8.>
MaxDevicesPerUserCount=<REPLACE ME with your max player count per box (note: split screen is still 1 device) In the example of an 8 player game, this would be 1.>	
MaxEndpointsPerDeviceCount=<REPLACE ME with your max player count per box (note: split screen is still 1 device)  In the example of an 8 player game, this would be 1.>
MaxUserCount=<REPLACE ME with your max player count (note: split screen is still 1 device)  In the example of an 8 player game, this would be 8.>		
MaxUsersPerDeviceCount=<REPLACE ME with your max player count per box (note: split screen is still 1 device)  In the example of an 8 player game, this would be 1.>

[/Script/OnlineSubsystemPlayFab.PlayFabNetDriver]
NetConnectionClassName="OnlineSubsystemPlayFab.PlayFabNetConnection"
ReplicationDriverClassName="<REPLACE ME with your existing replication driver class name>"
ConnectionTimeout=15.0
InitialConnectTimeout=30.0

[/Script/Engine.GameEngine]
!NetDriverDefinitions=ClearArray
+NetDriverDefinitions=(DefName="GameNetDriver",DriverClassName="OnlineSubsystemPlayFab.PlayFabNetDriver",DriverClassNameFallback="OnlineSubsystemUtils.IpNetDriver")