This model looks like it's going to be awesome, I'm really excited to see this in-game when you get the textures sorted out.
I will say not everyone will agree with it, I posted countless versions of my drawings attempting to depict a "standard" version of of 682 and everytime was met with something along the lines of "this is good, but i expected it <insert opinion here>".
This was the last version I posted, it's called concept 3 because this was the third iteration of that specific concept. Some peoples suggestions are so unrealistic, such as "i think 682 looks best when you don't know what he looks like", lol
Anyway, Rant over ... i'm looking forward to seeing a finished version and keep up the awesome work!
