Battlefield 4/Rare Reload Animations
This Easter egg triggers when a player successfully performs 3 consecutive head-shot kills of 3 different classes in one life with the Mare's Leg sidearm in BF4. The weapon will then display 1 of 3 unique animations when fired from the hip: a one handed backward spin, a two handed backward spin, and a reversing forward spin.
Unica 6 Reloads
When reloading the Unica 6, it can be that the player aims the gun up takes the magazine out turn it by 180°, put a new in, flips the old away and pads it.