Carpathiavah,
Love your Halo Reach M6B standard .pdo man! I've been building it this week and I like it! the only qualms I've to say about it is just like every other MA5K .pdo from garland which I've assembled....it has warp issues. But I think it's because I have big fingers and no support with cardboard then anything actually wrong with it.
My friend is also assembling it as well and he hasn't used fiberboard or cardboard as supports and his didn't warp.....he is so lucky. I wanted to thank you for making this awesome file!
P.S. I love you Carter shoulder file!