Nice!
Pros:
More like I requested.
I like the guns on the scorpion
Suggestions:
Shorten the mini gun a bit on the stinger. Also give it the appearance of firing at someone. Maybe have rounds being ejected out the side of it.
Make it appear the scorpion is taking in-comming fire.
Give the logo color, but keep the scorpion black.Don't be afraid to freelance it a bit.
Put the scroll on top, try military font (I will try and add an exmple of the type of crest I'd prefer)
Great job!!!!!