1) Open /Mods/RavenShield.mod file in the using Notepad.
2) Edit the below lines m_DefaultMediumPawn=R6Characters.R6RainbowMedium m_PlayerCtrlToSpawn=R6Engine.R6PlayerController to m_DefaultMediumPawn=RunNGun.RGPawn m_PlayerCtrlToSpawn=RunNGun.RGController
3) Add the below line at the end of the file. ServerPackages=RunNGun
4) Save the file and then restart your game server.
