I'd just use Recon as a stealth skill - it covers moving undetected as well as detecting foes (including sneaking ones) and spotting enemy (or security) positions - perfect for the professional soldier, the commando (yep, you get it in the LBB4 Commando School) and the burglar or thief.
Sooner or later I'll create an extented CharGen system for Rogues.
Sooner or later I'll create an extented CharGen system for Rogues.