Just like every version of Battlefield that's had it, it absolutely sucks. The latest Black Ops game has the perfect solution - pick your own colours for side/team/enemy from a limited palette. Something that people have been asking for since at least BF1.

DICE's solution? We'll pick some colours based on what we think will work for your particular type of colourblindness, we'll not give you a preview of what those colours are, you just have to work it out when you get in game. Not working out for you? Go in to the settings and change it to a type of colourblindness you don't have, and hey, enemies were a shitty pastel yellow, now that's teammates, and enemies are another vague, shitty pastel colour.

It's bad enough that all the characters are the same on either side, I should have to waste ammo shooting at everything that moves, or spend an extra 3 seconds looking at a player (and getting killed) trying to work out if that's meant to be the friend/enemy colour.