[@thewizardguy]
A Bit Conductor is a device that can control a small drone, known as a Bit. Bits orbit the parent ship in a circular pattern.

A Force unit is roughly one-half the size of an R-craft and requires reactor output from an R-craft and a focusing crystal to be used effectively. Otherwise it's just a crappy guided rocket with some piddly blasters attached. Also, no, Force units cannot be destroyed by a "sufficiently powerful energy attack" becuase the Force itself acts as a catalytic converter for energy waveforms, dispersing anything that hits it. This is how Bydogen canonically works. The gameplay of R-Type places a huge emphasis on the fact that the section of your ship covered by the Force (they can dock to the front or back of the craft) is the only part that can effectively tank damage. This likely will not come into play as much considering that this is not a video game but the Wave Cannon and Force are pretty much the most iconic pieces of tech in the setting.

AU means Astronomical Unit. The ability comes from R-Type Command, where the Bydo are implied to have a sort of internal radar that allows them to detect life signs, which is how they find the homeworld of the "other civilization" they were originally constructed to fight against.