I know this isn't canon by any means, but I just thought it was nice that the Raven guys looked at this... in Star Trek Voyager: Elite Force, the Borg enemies adapt to weapons you use on them (except the IMOD which uses random frequency modulations with every shot), however the Photon Burst (basically a much smaller and weaker photon torpedo launcher for infantry use) can kill them for at least a dozen shots.
Then, when they DO finally adapt (takes time, but they do) you can still kill them with the splash damage from the gun! I just thought it was cool that they included that in light of the various debates about Borg adaptability.
Borg vs. Photon Bursts
Moderator: Vympel