Note:
In Zudah lore, It can handle all Zeon weapons except beam, and its shield have a melee pick and 2 Panzerfaust and have option to use a Anti-ship rifle like Char Zaku II and reason why its unable to use beam, most of the energy is forwarded to the engine, adding a beam will burn it up due to engine stress, technically its like living in constant danger of blowing up
and those who saw it in combat nicknamed it "Icarus", since it can outrun a GM which is actually a better version of Gundam in response time and speedrate (If Gundam have no Plot Armor)
Big Rang: have missile that Inhibits Beam weapons for 10-15 seconds in front of it, since it was made like a moving frontline supply depot wouldn't want one beam blow it up.
Oggo: Like Zudah, it can have all ballistic weapons Zeon could have, but I notice it doesn't have a Panzerfaust well, since it was a rushed model and supply lines are strained the Oggos are given randomly like one have your standard issue Zaku machine gun and missile, and other is a Panzerfaust replacing the missile, and it was a death trap, but it get the job done.
There was a joke that Using MS as Ground invasion or ground defense? well it could replace the Heavy weaponry for these two factions and too op if you compare a tank against a 18 meter tall death machine staring at you
Zakus series have more variants than i know of:
Zaku II Flak (Main purpose shoot down aircraft, have Arm chaingun, and A flak cannon shoulder, a missile shoulder and legs), Zaku Missile (Logistics what that?, Missile go BRRR, Could be a solution for Anti-shield or anti-armor purposes), Psycho Zaku (You can use a Zeong Arm, since it is the predecessor of Zeong and cheaper too, but limited range because Scientist underestimated the Insane energy cost of the Weapon straining the Zaku engine), Full Weapon Zaku (Watched Thunderbolt, Jazz was great)
During the late stages of the war all the Gelgoog was required to have balistic weaponry since Federation have created a Anti-beam countermeasures causing the Beam Advantage to drop sharply, Zaku machine gun was most common while some rare instance they carried Panzerfaust or Grenades when shipments are late... to the point Pilots are complaining that they are Regressing instead of progressing.
Dom II engine was capable to shoot beams for a few shots (In Gundam: Operation Stardust Antagonist was shown in the Manga, He used a Dom II that shoot a Beam Launcher which is a oversized Bazooka that shoot beams, Killing 7 Salamis and couple of Balls and Gm's (Which is a Ace Record more than Char record of sinking only battleships) causing him to earn the Nickname "Nightmare of Solomon" Before the Anime shown that he was in a Gelgoog at Al Boa Qu)