It's going to be a tougher path for a man who is not 6'0"+. White women in the United States have been culturally trained to believe that 6'0" is the beginning point of desirability. Men below 6'0" are mostly trash according to these women.
Plenty of men below 6'0" get laid, so it's not doomsday to be below 6'0". The further away from 6'0", the more difficult that it will be.
Game is some combination of looks, money, status, and personality. Without 6'0"+ happening with looks, men need to either getting more fit to compensate, or compensate somewhere with money, status, or personality.