For the purposes of the wiki, you need to stick with the highest DR rating when writing the purpose on the weapon's chart. I'm not sure what wes wants, but tier 5 could require a power armor source, rather than just any robot like the article states?
You might want to rephrase "Plasma Ammo" to "Plasma Power Source". The article states that even without ammo, she has this. Plus the "ammo" linked is explicitly a power source.
The side effect sounds cool, but maybe adding a little more context for the type and severity of "damage" to the user will help GMs and players when sustaining it.