Finished! I did only a little bit of dirt, mud and weathering.
The warnings next to the gun mount say "STAND CLEAR WHEN GUNS ARE FIRING"
Black decals on a dark camo pattern are hard to read, especially under the dirt and mud:
It reads "NOTHING PERSONAL JUST BUSINESS"
Graffiti reads "How's my shooting?"
Thanks for all the comments!
And thanks for Jeff for sending me the M55 kit. It motivated me to finish the M998 kit that had been languishing for months. This was a really fun project!