NO NO NO, 109Es had 2 7.92 MG13s and 2 20mm MGFF!!!
Interesting development, you've got a profile of the chopper, a profile of the MG, will you do a profile of the guy in the window?
My 2 cents, I'd swivel the MG so it's at an angle facing out, the door gunner and MG would add a lot of animation value
