breaching 101

1: Bob - I had in mind that the nanites would eat plaster or whatever,
but
not like eating cloth/metal/humans.... so you could go through without
risk
(and yes, a limited lifespan is just good sense). As for the release of
CQB
2183, it'll be shortly after my new website comes on-line with Adrian -
give
it a month or two. ;) 

2: Los spake sagely:

Of course then there can be other specialist sci-fi cutting devices of
the
laser - plasma type. Potentially PA mounted.

--> Or, perhaps something like a tube charge you just lay against the
wall
in the pattern you want (a big door) and which, when activated, cuts
through
the wall like a laser cutter or via a burst of plasma. Or perhaps some
nasty
explosive polarized in a direction we want and controlled by a small
microcomputer to only detonate in the direction we want it to go (once
you
have contra-grav, lots of odd things are possible) - or maybe the
cutting
agent is a grav pulse... just rip you a door sized hole without a huge
shockwave... so you could follow it in immediately....

Of course, for every easy breaching method, there is a nasty booby trap
or a