fallthrough for MilFood

Makes the rations a bit more likely, I believe.
Fix fancy eyewear.
Heavy Weapons Ammo

Now there's a better chance that the batteries'll be included.  ;-)
mossberg 500 (pump shotgun) now has burst: 0 instead of burst: 3
Merge pull request #4765 from KA101/MilHW

HW ammo
Merge pull request #4764 from yobbobanana/fancy_eyes

Fix fancy eyewear.
Merge pull request #4767 from swwu/fix-mossberg

Fix Mossberg 500 having burst: 3