Roman: According to what I've read, potential MS ENG, NCS ENG, and MARS officers all attend NOAB. Seems to be a common experience that your local CFRC may not necessarily know all the ins and outs of the process for these MOCs. I know they had to make a call to figure it out after I was done with my interview, and I got some conflicting information in my subsequent calls. Understandable though, a CFRC in the middle of the prairies isn't exactly overflowing with Navy personnel.
I was told much the same as you WaitingTime, though it sounds like I'll be flying back on Friday and not Saturday. This NOAB is held in <a href="http://maps.google.com/maps?f=q&hl=en&geocode=&q=esquimalt&ie=UTF8&t=h&z=13&iwloc=addr">Esquimalt</a>, which is just outside Victoria.
I suggest reading <a href="http://forums.milnet.ca/forums/threads/52231.0.html">this post</a> if you haven't already, seems to be the best and most recent description of what to expect.
Cheers.