Punching, Kicking, blocking, pushing, and tackling animations.
To initialize the punching animation:
Ensure CL Keys are on [Ctrl and Tab to toggle on/off] and then Ctrl + P.
Punching and kicking will cause damage to both player and vehicles.
Punching with a weapon will activate a melee Weapon Butt Attack
All keys can be rebinded in your Arma III Controls Menu upon clicking "Configure Addons"