Remora.Belius said:
Yes, they do.
But just got to Pashow S
Or to Garliage Citadel S
Or to Grauberg S
or to Vunkrel Inlet S
and if you travel south of Meri Mount S where you OP, close to where you zone into Fort Karugo, you will find some Scorps on Widescan that are similar to the BST Yagudo NM uses. DC @ 75 so rip the place up pretty nicely. Reward gear advised, as the little Yags have lots of HP to plough through. Get one early on though in the campaign as it's a bit of a trek, otherwise grab the Torama that pop on WS close to the fort.
5k/stack for Zeta isn't THAT bad and frankly, solo EXPing BST on jugs alone is pricey.
edit: forgot jugner s!
To add to this slightly, if I have no use for my 2 hour, I wait near the telepoint and get the Mountain Scorps, the VTs, Charm and Familiar them as soon as the battle starts, and make the trek to the Campaign area. If you do this right when the battle starts, you should get there around the same time as the mobs, if not much later. I have SO much fun doing the smaller mobs with a VT pet. Nothing like seeing Death Scissors doing 1k or so on them, lol.
Pashow also has nice mobs if you're willing to make the trek, the slimes there are awesome pet. With food you can easily solo the smaller Quads.