So, since no one has played this Prc here's a gist of what I think the over powered abilities are:
1. At the 3rd lvl of this class: you get the abilitiy to make a full attack and take a move action.
2. At 4th lvl of the class: anytime you make a successful attack against a target denied their Dex mod or one that your flanking, you get an automatic critical threat.
3. At 6th lvl of the class: you gain the Blindsight ability (30 foot range).
Plus the Skirmisher gets seven other good class abilities, +1 BAB every level, a wonky save progression that starts at +1/+2/+2, good skill list and 4+Int skill points.
The only limiting factors to this class that I see are: 1) You have to take the Run feat 2) You have to be a Fighter/Rogue multi-class.
This Prc seems quite strong to me, I was just wondering if anyone out there agreed.