Oh, that is AWESOME.
I'm thinking a garrison Star for a newly established colony settlement. Either that, or a post in a rural area of pine of the core Castillian worlds, basically an area that's about as safe and unimportant as it gets, but still requires some kind of Scorpion presence.
Hmmm... How about one Araña, two Points of Korvins, and two Points of hover mechinf, broken down into squads? The whole formation is surprisingly fast for a backwoods militia post(and well suited for Scorpion-style pincer tactics), eight squads of fast troops lets you spread your pickets across a large area, and the armored core of your force has respectable firepower at all ranges, all for less than 5,000 BV.