why the needs for tons of weapon per unit? Despite no gravity there is still mass, the higher the mass the more difficult it is to move around in space. Keep it light and simple not much moving parts cut cost down, make tons of unit with just 1 or 2 type of weapon each. In real life warfare, numbers will almost always win.

also with limb base weapon, how r u gonna b effective if ur enemy blows off ur limb? u cant fire back then. We design weapons operated with limb cus biologically we hav limb, why restrict machine with such limitation? The more moving parts u hav the more complex it is the more things it could potentially fail. The reason why the russian soyuz space craft has good operational record was cuz its simple, space shuttle was plague with tons of problem and cost a bomb to maintain. Soyuz is still here, while shuttle is dead.

Lets stop discussing 'logic' and back to 'fantasy'.  

Talking about RG, my Freedom and Justice also kinda loose at the waist...

Not as annoying as the visible policap at the torso...

buy a ehemm brand katana for this guy, may be ?

Iyo.... yo... Boy~ah... Still play this robot thing meh... so old liao still play toys.. iyo... .... old enough to find a wife liao... don't play this toy la..!!! 

not rachet, just the joints have this fabric wrinkles effect, supposedly in the manga their joints are covered in protective fabric, or something like astronauts' spacesuit joints