Boxing
This mod revives what appears to be a cut feature from Tiberian Dawn that allows infantry to engage in hand-to-hand combat.
Infantry will start "Boxing" if they find themselves directly to the left or right of another infantry unit they want to attack.
This works with both the original and remastered graphics.
Source code for this mod can be found here: https://github.com/MartinPalko/CnC_Remastered_Collection/tree/Boxing_Mod