'Ion' cannon TL12 - no similar weapon system exists in the OTU or in T5; and once again this weapon system has nothing to do with ions.
Tachyon cannon TL14 - WTF?
Jumpbreaker missile warhead - TL13
All presented in the book as standard components with no contra-indication for the OTU.
Then there are the ridiculous dogfighting rules...
See that those weapons may well not be for OTU.
I don't know about MgT 2Ed, but 1Ed was, in my eyes, the most setting free editioin I know about (I don't know about T5, T20, GT nor HT) since CT appeared (previous to 3I), so they may well want to have non-OTU possibilities (as the variant drives appeared in CB page 109).
If so, IMHO they are legitimately free to do it, with all those gadgets and variants simply ignored by those of us taht want to play in OTU (or OTU like universe).