Salam, spacefarers!
Breach charges are Crit 1, but "Explosion" rules at p.100 says that regular explosion Crit is 2.
Breach charges makes their own (especialy powerful) explosion or their Crit must be 2?
Breach charges are supposed to be powerful, blowing the everluvin' crap out of things like starship hulls/ security portals and building walls. They're designed to do more damage, more crits. Boom, baby.