QUOTE (Sengir @ Apr 28 2013, 10:37 PM)

In order to regroup they would have to be a unified group in the first place

You mean like, maybe, a gang?

Last time I read up on SR Seattle, the barrens weren't lacking in at least moderately organized groups. Of course not every gang in the barrens will be sufficiently organized and equipped for taking on a KE platoon, but some are. And even those who aren't really up to the challenge, but crazy enough to try, can still hurt.
Sure, they may keep their heads down at first as long as KE seems to be going only after the other guys over there. But if the KE troopers start randomly kicking in doors all over the area, as your earlier post seems to suggest, they will respond.
Even if they avoid a head-on confrontation, they can still make a fair bit of trouble, like setting up IEDs and such.
QUOTE (Sengir @ Apr 28 2013, 10:37 PM)

The whole point of rolling in with such an amount of force is to encourage everybody to keep their heads down and wait for the storm to pass. If it looks like the storm will not pass the locals will certainly become slightly unfriendly, but for a few hours at least everybody will be busy looking innocent. Gangs are also for-profit organizations, and needlessly butting heads with KE would be bad for the bottom line.
And that holds true in reverse, too. Needlessly butting heads is also bad for KE's bottom line. And not all gangs in Shadowrun are rational profit-first crime businesses.
Basically while I agree that there is a certain time window where the "shock and awe" works in KE's favor, I don't think they'd push their luck overly by going on random forays.
Old information, but probably still useful:
According to
New Seattle (SR3, 2060s), Lone Star's minimum force for an E zone was two citymasters carrying twelve to fifteen officers in heavy armor plus one rigger per vehicle and at least two combat mages, all of it led by an "elite officer".
The mimimum force for a Z zone consisted of 3 citymasters with 25 officers (full armor), air support from helicopters (no number given), one rigger per vehicle plus one dedicated drone rigger, at least five combat mages and one combat decker and three "elite officers" coordinating all that.