sathish05duraiYep, I have similar issues with CODM even on my LG V30 too. This is not ROG 2 specific.
While playing cod mobile battle royale the phone gets hang and suddenly starts to flicker in game. Sometimes i get black screen while playing cod battle royal.
Only option is to restart the mobile.
But i got this mobile for gaming but not able to play cod battle royal. Waste of time and money .
I am not having this issue in cod multiplayer matches.
Fix this in next update. Got this mobile for cod only but now that game itself not working properly.
Call of duty mobile screen flickering issue and black screen issue