You can shoot the blue cannon of the Devil Walker (Destiny)

by Vortech , A Fourth Wheel, Friday, December 12, 2014, 22:08 (3433 days ago) @ HuskerAlpha

I read that you could do this in the grimoire card for the walker but every time I tried I lost patience when the group had it down to low health and just went back to shooting the legs.i thought maybe I had just read too much into the card. Nice to see it was real.