out of curiosity, where do we get any info on the HBK-2's loadout? the only reference i know of is the original TRO:3058
There.
Based upon the text the Clans added a second Autocannon to take advantage of the smaller components, and also added jump jets. Therefore, although the IIC was based upon the HBK-2, the HBK-2 had no jump jets,and only a single class 20 AC.
"Initial hardware assessments...allowing the installation of two rapid-fire autocannons rather than a single AC-20. The higher tech also allows room for the installation of jump jets..."
There is also the initial description...the HBK-2 is a basic design that has remained largely unchanged since its inception.
You could argue that it doesn't specifically give the info, but the text seems clear to me