After Woods rescues the player from the Soviet guards, the Base Alarm button can be pushed by the player. If it is pressed, the Soviet guards ahead will be alerted, with Woods shouting "What the fuck, Bell?".
If the player pushes the button on the right side of the Bubby statue multiple times (roughly 4), it will eject an M79.
If the player walks into the bar in the training area, Nikolai Belinski can be heard over the intercom saying "What? I need vodka!".
The song playing inside the arcade is the 1980 song "Hit Me with Your Best Shot" by Pat Benatar.