Well, I consider it a great start but has there been an omission or is there really just one page?
I miss quite a few things, like a thorough examination of the Marksman upgrade options (it only says to give a Mrksman a Rep. HG but not why, and I know many people, including me, think the RHG only a valid choice when one wants to save deployment space.), nothing is mentioned on the HLR at all.
Maybe looking a bit more at the first volley extra range rule and what it means for deployment or even taking the first turn.
A more in-depth look at HG detachments?
Don't get me wrong, what is written at the moment is good, I just think it can use a lot of additional information to make it a truly complete Handgunner Tactica that people automatically refer to whenever a beginner asks a question about Handgunners. 8)