Fokker, the vulcans were only used for real close combat, and were primarially used to take out the main cameras, they didnt have the piercing power to actuially take out a mech. Infantry weapons were still what we have now, more or less, the rounds would be to small to see at 1/144 or 1/100 scale it would be like taking a needle and poking the kit to make the bulet holes, and that would be to big.
Mercedesman, if your not trying to make these cannon, or worrying about scale or anything, then there perfectly fine, keep up the good work, but everyone who knows gundam that sees them will tell you the same. butby scale, the kits come in 1/144, 1/100, or 1/60, its the same as with tanks and aircraft. If you dont know, it means that it would take 144 of them to be the size of a real one.
Your Zgok, while it looks really nice, you missed fixingthe seams on the torso, and on the arms. Sometimes there meant to be gaps, like on the legs, but those arent, those are seamlines that should be filled.