I just unlocked Echo and Rex is soon to follow but I noticed something when looking at the clones.
There are only 5 playable clones that we can use so far.
This is absolutely terrible there are so many Clones that could be interesting to use like Gregor, Wolffe, Kix, Waxer and even Boil.
Personally I think Kix would be interesting as a new character as he is a medic and could be the healer for the clones.
Lastly please let us have the option to turn helmets on and off personally I like the clones more with there helmets on.