[Pierre-Marie Baty]

This ain't making the bot aim to the right side. The only thing that could cause the effect you're witnessing may be the weapon recoil. Especially if you use the bots in realistic mods such as Counter-Strike (which I bet that's what you're trying to do).

This behaviour is not a bug in the HPB_bot, but rather a lack of a functionality, which is recoil compensation.

To compensate for the recoil, most bot authors compute their aiming vector by taking in account the "punchangle" variable in the bot's entvars structure.