actually, when you look closely on some parts of the guns, there are scratches and wear points. I didnt do anything extravagant like sandblasting (since it's not in iraq), but I did do wear-points that I remember from when I used to have a painted m4 (only an airsoft version, mind you, sorry no military experience, just a geek I guess).
Since I have a month of summer vacation, I might update it a little and add more wear-and-tear and also use an updated skin for the MC.
Also like I said earlier, Im going to make an ACU version with Brettzie's latest M4/M16/SPR/Mk23 masterpiece.