About a year ago I was playing Call of Duty: World at War, playing the "Zombie" mode when I joined a game and unlocked two achievements. (It's All About Prestige and Go Get Some Sun, both worth 0G.) It turned out to be a modded lobby so I left.
The reason why I bring this up is because it is messing with my physic. I don't feel like a legit gamer anymore and I just want people's opinion on this. What should I do?
(I have brought this topic up before but I was not happy with my answers.)