[@Harbringer], the character itself is mostly fine, the only real gripe I have is the callsign being the near the same as someone else's, but it [i]is[/i] in another language, so its not that big of a deal. 

In regards to the machine, I do like how you've introduced your own systems and balanced them reasonably well, though I will have a few edits to make with it:

- I understand your reasoning for increasing the weight/power of the rifle, because if its power, but it can remain 5 WT 2 PWR like normal weapons.

- Inertial dampeners can be removed and assumed to be already built into the weapon/MAS.

- I probably will not allow the shield breaker rounds- also MAS's, while fairly dexterous, probably would not have the manual dexterity needed to load individual shells into a weapon

- You can drop the weight of the grappling system down to 3 from 4, and the power usage to 2 from 3. We can consider it a 'built in launcher' for mechanics purposes 

- I probably will not allow the STX-05 to have a pentacore engine, though you can give it a reactor upgrade, granting 5 extra power at the cost of 3 weight (Which I have just shaved off from the previous weapon edits), totaling 20 power