There is not much to note in the prequel editon of the Terminator:salvation series. I had high hopes for IDW because they do some really expert work on a lot of diffrent lines, but this seemed to fall through the cracks. Sadly it does some work on trying to do something but it does not seem to have the ability to go beyond what treasers the movie offers. You can really tell it has its hands tied.
Another thing I did not like it the fact that I expected a little more on the Terminator front. I know the T-600 is running amok and there are other lines we see, but these ar enot showcased that much. Before you think that this is because of the movie being followed, there were some other prequels put out. amongst them was the Machina seies and the Terminator novelization prequel, and both at least tried to lay foundations. To the "movie" credit, it did use T-70s and some other Terminators to tease you. The book also mentioned the fact that T-400s are outdated and that the T-600 and HK are strategy options and played out how that worked. In both of those you had an idea of the skynet scope. Here you feel a little of both sides and a little of none, not really caught in a struggle between them but in a struggle to compress pieces of movie hype into pages.
It could have been more.
If stoory of other options do not really matter, then art might. It was not a thing I would invest myself in, and i hate saying this. I love my T-series stuff, too much sometimes, but bad is ultimately bad. Not much else to say expect thank you for reading.