Kina thinks that all they need is to get back in their hovercar first. Once everyone's in position (Master Kolar dropped off, Mace, herself, and her droids flight-ready...), ready to move on her mark...
There's three groups of charges she planned.
The shock and awe charges, split into a few different groups to draw attention, the tactical effect charges, that have been snuck into the internals to allow blowing out some of the less-reinforced-than-the-doors walls on demand, and the strategic effect charges, that blow out ship thrusters, landing bay door mechanisms, weapon emplacements, and power plants.
There's a short delay between each of the charge-sets she blows, to give them just enough time to think that's the last of it...before the next one hits.
And it goes like this:
Boom, goes a package in an empty mailbox. Boom, goes a package in a nearby dumpster.
When the kicked beehive has started calming down and moving back into its rest state... "Everyone be ready to move, on my mark...3, 2, 1, mark." Boom bbboom boom, go the bombs snuck into the armory, the ships' thrusters, the power core.
Then she blows the internal mechanisms of all the closed doors.